PhoneChoice has lost a paying customer

I have been with HomeChoice for a few years. And recently I made a purchase with the phonechoice division. I am extremely displeased with this division, so much that I will NEVER support them again. For the 3rd time they made random debit orders not according to the agreement. My original request was for a debit order to occur on the 1st of every month. They randomly change this as they see fit. For example, I got debited on the 30th November (violation 1) and then I get debited again on the 19th December (violation 2). I have complained 3 times and they again do as they please. I am now going to block these debit orders as they are not mature enough to handle them and will make payments myself.