I am not happy about the service, what can I do?

If you have paid but haven’t received your order within a reasonable time frame, the first step is to contact the merchant.

If you're unable to receive a satisfactory response from the merchant, you could under certain conditions ask your bank to reimburse your payment.

Please be aware that this might create additional costs for you and the merchant. 

Another option would be to contact a consumer organization to check your rights.

Please note, the Worldline entities cannot give you any information regarding your transaction – only the merchant involved can do that.