Just to clarify, I said "credit card" for simplicity but I use my card primarily as a direct-debit card; taxis (and everyone else) accept that here, and have be

Just to clarify, I said "credit card" for simplicity but I use my card primarily as a direct-debit card; taxis (and everyone else) accept that here, and have been since 1980's. So the credit card company is not involved.