Not exactly: You could sign a contract with your landlord, then revoke the so called "SEPA mandate" afterwards and you can forcibly switch to "manual payment"

Not exactly: You could sign a contract with your landlord, then revoke the so called "SEPA mandate" afterwards and you can forcibly switch to "manual payment" each month, since the SEPA mandate is not necessarily required or a "legally-necessary intrinsic component of the contract" (check for example: https://deutschesmietrecht.de/mietvertrag/662-mietzahlung-einzugsermaechtigung.html https://deutschesmietrecht.de/mietvertrag/662-mietzahlung-ei... ) Tough, depends on which type of relation you want to have to your landlord ;-)