An e-ticket can be returned with the appropriate charge and within the time limit before the departure of the connection through the CP.sk website on the Tickets page (https://cp.sk/jizdenky/) by filling the unique CP.sk Code (its format is XXXX-XXXX-XXXX) of the e-ticket into the appropriate form. This code is always present in the text-body of the delivering e-mail with the e-ticket and in the name of the PDF file of the e-ticket itself as well. The Code CP.sk is also part of text content of the PDF file of the ticket. 
When returning the ticket on the same computer and in the same internet browser where it was purchased, you can return it by clicking the "return ticket" button, if the e-ticket purchased by you is still visible on the listed page.  
An e-ticket purchased by a certain logged-in user can only be returned by the same logged-in user, and it can be easily done via mentioned button without necessity to enter the code of the e-ticket into the form.

The return conditions are determined by the relevant Carrier, the e-shop CP.sk has no influence on them. Always before the payment process is started, the return conditions relevant to the e-ticket are included in the “Conditions of carriage” link under the name of tariff of the e-ticket in the shopping cart.
After purchase, return conditions are visible in the PDF file of the e-ticket, usually in the format “charge in €/time before departure in hours”, means - the time limit until which the Carrier allows to return the e-ticket with the application of the specific charge.  

Tickets cannot be returned usual way after the scheduled departure time. In such a case, they can only be claimed. Information on how to rise a claim are stated HERE.

After the scheduled departure time tickets (even doh they are unused) are non-refundable.  It is possible to rise a claim in certain cases, information how to rise a claim are listed HERE.

Returning of a ticket is an irreversible process. The returned ticket is no longer valid and cannot be restored in any way.

Conditions applied for the return of tickets strictly follow respective rules defined by each Carrier.
Two-way tickets (There and Back) with a special discounted two-way tariff, issued with one check-in code for both directions, which are offered for some bus lines, is possible to return just one way or both ways together. The return of the ticket is allowed only until specific defined time before the departure of the relevant (to be returned) way of the ticket. If for two-way ticket is returned just one of the ways and the departure time of the other (not returned) way is still in the future, then our e-shop will generate and will send to you a new one-way ticket (for the way, which has not been returned) with a new check-in code, however the special discount applied previously for the initial two-way ticket will be not applied for the new one-way ticket (the way of travel of the initial two-way ticket, which was not returned). In case of partial return of two-way ticket the refunded amount for the returned way is equal to the discounted part of the two-way ticket; therefore the refunded amount is lower than the price for a regular one-way ticket on the same bus line.
 

A multi-passenger group ticket can be returned in its entirety only, it is not possible to remove a passenger separately.

Tickets cannot be returned after the scheduled departure time, so if you miss the connection, the ticket is forfeited. 

It means that the code of the ticket has been filled in incorrectly. When returning a ticket, there has to be filled the CP.sk Code of the ticket, its format is XXXX-XXXX-XXXX. The CP.sk Code is listed in the information text of the delivering e-mail with the ticket and is also presented in the PDF file of the ticket itself.
Beware of typos caused by mistake substitution of characters – e.g.:  letter “O” and number “0”; letter “I” and number “1”; letter “S” and number “5”; letter “B” and number “8”, etc.