All participants must Create an Account and register via the Online Registration Form. Please read the instructions below carefully.  

Each participant will receive a registration number by email after submission of the  Online Registration Form. As for payments completed by bank transfer, please proceed with the payment only after receiving your registration number.   

Please do not send any payment by bank transfer without the Registration number and participant’s name included in the payment details. 

Registration Fees

All the above fees include a local VAT of 21 %. 

Please make sure to pay your registration fee before the deadline for the selected registration type. The later fee will be automatically applied if your payment is not received before the deadline date. 

Unpaid or partially paid registration will not be considered valid until fully paid. 

All registration deadlines are applicable considering the local time (CET/CEST). 

Registration Fee Includes: 

  • Access to all scientific sessions 
  • Access to the exhibition and poster session 
  • Coffee breaks 
  • Lunch 7 May 2023 
  • Electronic abstract book and printed pocket programme 

    All registered delegates will be included in the list of participants. If you do not wish to be included, please specify in the registration process. 

    Social Program

    Symposium Dinner

    Date: 6 May 2023
    Place: hotel Sercotel Sorolla Palace
    Ticket: 70 EUR 

    Symposium Dinner is fully booked & capacity is limited! Thank you!

    Onsite Registration 

    Please note that on-site registration will be possible. Payments can be processed by credit cards or in cash. 


    Each participant will receive a registration overview and an email notification confirming the received payment and eventually stating the amount outstanding after completing the Online Registration Form. 


    All fees should be paid in EUR (€), free of all bank charges. 

    By Bank Transfer 

    Please make sure that the payment is free of all bank charges and participant’s name and Registration Reference Number are clearly stated in the bank transfer. 

    The payment by bank transfer is available until 13 April 2023. After this date, all payments can be done only by credit/debit card. 

    Payments received without such details (name, Registration Reference Number) cannot be identified. 

    Beneficiary  CZECH-IN s.r.o., 5. května 65, CZ-14021 Prague 4, Czech Republic 
    Bank  KB a.s., Na Příkopě 33, CZ-11000 Prague 1, Czech Republic 
    Account number  51-0903490207/0100 
    IBAN  CZ5901000000510903490207 

    Online Payment by Credit/Debit Card 

    In case of rejected online credit/debit card payments, the delegate is recommended to amend his registration online and try to process the payment again. Should the trouble with the payment persist, the participant is advised to contact the credit card issuer/bank first and check if the online transactions are not disabled on his credit card. Afterward, the amendment of the registration can be processed again. 

    Online Payment Details

    The preferred method of payment is by card online via our secure payment gateway:

      WORLDLINE – Payment Solution Saferpay

      Online payments service provider – WORLDLINE.

      Accepted Credit / Debit Cards

      In the unlikely event of a rejected online credit/debit card payment, the delegate is recommended to return to his/her registration online and try to process the payment again. Should the payment issue persist, the participant is advised to contact the card issuer/bank first to check for any potential block on the online transaction. If so, once this is removed it will be possible to pay via the online payment gateway.

      Final Invoice

      The final invoice can be downloaded from the Online portal three weeks after the registration is confirmed and paid in full. If you need assistance with the invoice, please contact the CLLS Secretariat. 
      The final invoice will be issued based on details provided while registering (step Contact/Invoice details).  

      Any change of such details (address, VAT number, etc.) is possible only within 3 days from the registering date and is subject to the 20 EUR fee.  


      A Visa invitation letter can be downloaded from the Online Registration Portal after the registration is confirmed and paid in full. If you need assistance with the Visa invitation letter, please contact the Symposium Secretariat.  

      Cancellation / Refund Policy


      Cancellation of Registration 

          • Until 14 March 2023 – a 20% administrative fee will be deducted from all refunds 
          • From 15 March 2023 until 14 April 2023 – 50% of the fee will be refunded 
          • From 15 April 2023 – no refund can be processed 

      General Cancellation Conditions 

          • All cancellations must be notified in writing (by email or by fax) to C-IN and cannot be done online or over the phone 
          • Requests for refunds made after 7 May 2023 will not be considered 
          • For any change of name, a fee of 20 EUR will be charged 

      Data Privacy and Security

      The European General Data Protection Regulation (EU GDPR) entered into force on 25 May 2018 and it involves some additions to data protection.

      We take your privacy very seriously and to comply with GDPR consent requirements, we need you to confirm that you agree with our new Privacy Policy during the process of creating the account in our system. You can view it here. 

      After creating your user account in our system, you can manage your information, and protect your privacy and security via our  Online Portalwhich is fully GDPR compliant. 

      Feel free to contact us with any questions regarding the Privacy Policy, Data Protection, and GDPR in general by emailor by phone at +420261174301. 

      Cancellation or Modification of the Meeting Due to Force Majeure 

      In the event of a force majeure situation, CZECH-IN s.r.o. reserves the right to alter or cancel the meeting without prior notice, including any change of the time and/or venue of the meeting. Any occurrence of a force majeure event shall be communicated as soon as reasonably possible from the decision time. Force majeure includes any circumstance beyond the reasonable control of CZECH-IN s.r.o. which prevents or impedes the realization of the meeting. This includes but is not limited to, government action, war or hostilities, riot or civil commotion, plague, or another epidemic such as SARS, Covid-19, bird flu, earthquake, flood, hurricane, cyclone, fire or another natural physical disaster, explosion, accident or breakdown, strike, lack of the usual means of transportation or terrorism. CZECH-IN s.r.o. shall not be liable for any direct or indirect, incidental, consequential, punitive, or exemplary damages, losses, expenditures, or any other inconveniences or costs caused by such modification or cancellation of the meeting. Unless provided otherwise by the applicable mandatory laws, the registration fees will be reimbursed in accordance with the CLLS 2023 cancellation policy.  


      The registration fee does not include the participant’s insurance against accidents, sickness, cancellation, theft, property damage, or loss. Participants are advised to take out adequate personal insurance.