App Disaster - numerous fixing attempts useless!

As a follow up on my previous complaint about the app not working, I am still sitting with the same problem weeks later, after numerous emails back and forth. I have tried everything they have suggested and the app is still not working. Extremely upset as this is costing me money! I pay quite a lot in bank fees an the app was saving me some of those fees. I have emailed the customer service gentleman who was helping me a couple of times in the last week and have received no reply. My apologies Standard Bank, but I am utterly disappointing. I am at the point where I will be taking my business elsewhere in future.