Poor Management and Service

I went to KFC Bedford Centre for lunch at 12:00 on Friday. There was one till open during peak lunch time, I got to the front of the line an ordered the family treat meal with my bank card in my hand. I tried to order the snack burgers as my optional side and was told that they don't have lettuce so I can't, I ordered zinger wings instead. I was then given the total and when I handed the cashier my card she looked at me confused and said that they only take cash at that till (the only one open). She then called a manager who fiddled with the attached card machine and then tried processing the transaction which took a while so she pulled the network cable out. I got an sms on my phone saying the transaction went through but her slip didn't print so she asked to do it again and said it would be reversed. I agreed and she reprocessed the payment. It went through the second time and the first was reversed as she stated however I mentioned this because this KFC has had continual problems with card payments for over a year now. They frequently have "cash only" signs up in the drive through and even a perspex one in the store for when they are down, surely they can be replaced? I got my order and drove back to my office, opened the packet and the two large chips were missing. I got back in the car and went back to KFC, now 15 mins later and a long queue had built up as there was still only one till open. I went around the side and asked one of the staff to correct the order and please give me some salt and tomato sauce as there was none in the packet. She did so, fiddled around under all the counters and then handed me one tomato sauce sachet (for both large chips) with a statement that its the last one, they have run out of tomato sauce. At the same time the man in the front of the queue was told that he would have to wait 20mins for the zinger wings to cook because they have run out. Its totally ridiculous that in a built up city a KFC can run out of lettuce and tomato sauce (never mind that they are next to a mall where they could get some "emergency" lettuce and tomato sauce), not have food prepared for lunch time and that they frequently don't accept card payments because their machines are offline/broken/lost signal etc.. This KFC has a serious management problem as this is one of the worse of a multitude of times they have had missing ingredients, limited payment options and their computer systems are down. There is a running joke in our office about how poor the service is at this branch however it is close and convenient for us so we go there anyway. I complained about this store last year and I was told that the store manager would contact me, I am still waiting for that call. If you have any pride in your brand you would intervene, this store is giving your brand a very poor image.