Shamefull Absa Business Credit Card and Service

Good day, I am writing this review on behalf of my Father. His Business account is with absa, in fact his personal account has been the same since Volkskas Bank which merged to become absa etc. For 3 years now absa cant sort out my fathers Business credit card, for example today again his card was declined "insufficient funds" for R 5000 , which not just looks bad and is highly unprofessional when the company you are trying to buy from says "it seems you cant afford the item", but there is in fact 30 times that amount available in the business account, this happens almost every month, which means my dad has to use his personal card, so not only does he have to pay more personal tax, he cant get that money back in the business, which is what the business card is actually for. He has been trying for 3 years to get the Max amount per month higher "limit" but he just doesn't get service, we spent 40 mins today again on phone with the call center, spoke to a Nadia and Tebogo, all they say is no managers cant assist, no one from Card Devision can help us, we cant reach the CEO or anyone higher up and then they both just hung up the call while we were still talking, my dads banker from his branch says no one is willing to help her. Absa cant wait to take they're bank charges etc but we cant complain about the Service as there is none. Its so frustrating and Humiliating at times. For once we would just like good service and the right person to sort out the card, limits and hassles. On my dads personal side every week they phone and theyre willing to give him 50k to 80k personal credit, but on the business side no one wants to even assist, and without his business there is no "Personal side"