Disgraceful

I've been with Game probably 5 years maybe more and today I got a notification that they did a debit order which isn't the right date firstly. I understand the 1st is a public holiday but they didn't send me any notification to notify me to make sure I have the necessary funds in my account and not only that because I didn't have enough money in my account my bank charged me with a fine. So not only is this going to reflect on my credit score I have to pay a fine that could have been avoided if I was notified. When I phoned them regarding the problem they just kept on telling I should have been notified and I'll have to go in store to pay my account. There resolve after no notification causing me a fine and now I must take my time as well to in and pay there mistake and after requesting to do the debit on another date in January they can make it on the 10th and can't guarantee it will go through.