Telecoms, kinda. They will try to force this on you via contract. You can say no, but they will lie to your face that it's impossible. You can always get a pre-paid, too. I witnessed the same situation (forced by contract) in some Gyms as well.
Vatenfall and other electric companies, the government itself, banks, landlords, Hausverwaltung, all are surprisingly chill about which payment method you use.
But then again, Telecoms and Gyms are always trying to cheat and steal from you in every country that I lived, that I'd call this the exception to the rule.
Telecoms, kinda. They will try to force this on you via contract. You can say no, but they will lie to your face that it's impossible. You can always get a pre-paid, too. I witnessed the same situation (forced by contract) in some Gyms as well.
Vatenfall and other electric companies, the government itself, banks, landlords, Hausverwaltung, all are surprisingly chill about which payment method you use.
But then again, Telecoms and Gyms are always trying to cheat and steal from you in every country that I lived, that I'd call this the exception to the rule.