I have a PL residency and DE M&M credit card.
Granted, I also have a DE bank account. But since I haven't used it in years, there is no financial history, so it's a "credit" card without a real credit line. Works like a debit or pre-paid card - you have to put the funds on it first. Which is fine for me - at least I have an EUR-denominated CC and can avoid my PL bank's foreign exchange. And the money deposited in the CC even earns you interest.
And, yes, I would be happy to recommend you and, if needed, help you with the process.