I agree that helloCash sets up and activates the signature. In the course of the establishment the certificate is bought, which costs 29,90 € net. The creation of the signature by helloCash is free until 31.08.2020, then 49.90 € net will be charged. helloCash assumes no liability for the correctness of the information or the established signature. I (the customer) is responsible for verifying the signature, the starting-invoice and the certificate in FinanzOnline. I (the customer) am further responsible for my payments to the tax office.