Horrible service

Service the past few years has been terrible on my end. Two years ago I app**** for a credit card and had to wait a month to get it, reached out to their contact centre multiple times and they sent me around in circles, but I ended up getting the card. Recently I've upgraded my banking tier which comes with debit and credit card upgrades as a bundle. Again, I've been waiting a month and still haven't gotten it. I've spoken to my personal banker, the contact center and visited a branch about this. I've tried everything I can on my end. Apparently the cards exist but they haven't been shipped anywhere or "processed". This morning I woke up to a balance of R0 because of an IT glitch causing transactions to be duplicated. I was at the petrol station and tried to use my debit card and guess what it doesn't work. I'm assuming it's because I need to be using my "new" card which is up in the air. It's been so easy to open accounts and give them my money to keep but when it comes to honoring SLAs this bank has been performing horribly. You guys need to do better and I want my issues resolved ASAP.