Why is Netflix no direct debit?

I would like to log in to Netflix but it is not with direct debit, I do not want any other, I also tried to write IBAHN together is still not, it may also be because I have tried more times.

Can you please help me, thank you

Only with Paypal

They want to avoid the risk of a return debit due to non-coverage. Because that causes high costs.

It's just like Amazon, sometimes the company has problems with your credit rating.

Then certain payment methods are excluded, you can't change that.