Hi Tuan,
you are correct. There are currently 32 payment methods in our Stripe account (Settings -> Payments -> Payment Methods). Bacs Direct Debit is one of them. I just had to 'enable' it. Then it appears as a payment method when the customer is choosing how to pay for their subscription. With a Direct Debit, instead of giving card details, the customer has to supply their bank sort code and account number etc.
It took 8 days for my UK bank (Halifax) to set up the Direct Debit and pay the first subscription fee. Recurring fees were a bit quicker, 5 days. Worth bearing in mind if you have a short duration 'test subscription' plan to test that it works OK for your organization.
