Direct debit is the standard banking term used here in the States and many EN speaking countries. "Sem parar" sounds like an ongoing authorization the client has given their bank to pay bills from certain vendors/service providers, etc.

https://en.wikipedia.org/wiki/Direct_debit

To set up payments by direct debit, the payer must complete a Direct Debit Instruction to the merchant. This instruction contains bank-approved wording that makes it clear the payer is setting up an **ongoing** authority for the merchant to debit their account.

http://www.businessdictionary.com/definition/direct-debit-pa...

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