These guys are the main Skoda dealer in town. Full showroom, the lot.
And they don't have a card terminal? The mind boggles... how are you supposed to pay for pricey dealer-repairs?
re: the bank transfer, I think it's just a case of them doing the paperwork face to face and it being a bit complicated to do a transfer.
To be honest, there's really no excuse in Poland for not accepting transfers - the law even considers "proof of transfer' (ie, a print out) to be proof of the transaction, so all they have to do is get you to take a printout to them!
You'd think such a business would want to avoid handling cash!