I think I'm probably being rather dim here, but I use natwest online banking. I want to pay off a natwest mastercard bill for my DM (she has been ill and things are getting on top of her, I'm far from flush but I need to do this). Anyway, here I am on natwest online banking trying to find "natwest mastercard" on the drop down list of payees (it is not coming up) and wondering how I fill out sort code etc. for someone else's card. No online live person help seems to be available (typically!). Any thoughts?