I have a couple accounts, one now insists on card payment, it slows me down buying (which might be a good thing) as i like to pay by cheque.
I am quite disciplined like that, I pay by cheque at the end of the month, i know where i am that way, when you use your card unless the supplier is on the ball you might not get an invoice, then you forget to write it in your books, then you have a bigger tax bill. At least with cheques i can keep up with it all easier.
Another one, hardly ever bills me, i asked for a bill for months, there excuse was they had too much cash, no kidding.