[ar0]

In Germany (where seafile is located), there is for example Paymill [1] for accepting credit cards and SEPA direct debit. It is pretty expensive (2.95% + 28 cents per transaction) but it seems to have a good API and if it is more reliable than PayPal (which isn't exactly cheap either) it might be worth it.

[1] https://www.paymill.com/

[thesimon]

Quote overpriced and uncertain future (they recently filed for Chapter 11)