Good on your Mercury, you now want to add 0.71% to...

Good on your Mercury, you now want to add 0.71% to my bill for having had a credit card associated with it for almost 15 years. You even charge for paying over the counter. You want everyone to direct debit which creates more issues of having to make sure you have the funds in the account each month. With a credit card, you never need to worry. It makes absolute no sense at all, you say you will give a 2% discount if you use direct debit. So Mercury takes a loss of 2% on every invoice. If you are willing to lose this, then why can't you pay the 0.71% credit card fee, you will make 1.29% and you are also guaranteed to get payment ontime, win win if you ask me. So maybe its all a tactic to get more money out of customers who forget or don't have money in the nominated account, so the customer is then charged extra penalties and also misses out on the prompt payment discount. Seriously thinking of switching