Billing cycle with SEPA?

In season 18/19 and 19/20 I payed via Paypal.
There was always a billing cycle. When you joined on the 15th and you’d quit before the 15th a few month later, you’d still be member till the 15th.

This season I payed via SEPA bank transfer.
I joined on 21st and was billed on the 26th of each month.
I canceld today (30th) and I’m no longer a member.
I expected to be a member till 21st or 26th.
Is there no billing cycle when paying via SEPA?

@Bench

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