FAILING TO DELIVER AS PROMISED

I have been trying to buy something online with my fnb card today the whole day and it has been getting declined. I wasted over R100 of my airtime trying to get them to help me out because I had to pay for the product so it can be delivered to me on time so I can deliver it to my clients also. I couldn't get help on their app and i had to call their call center where I had to speak to aguy by the name of Kevin who was very rude and unhelpful. I told him to let me speak to his superior who also promised to call me and didn't call at all. I won't be bale to deliver to my clients anymore because of FNB which means my reputation and my revenue is on the line. FNB needs to stop saying that they have the best infrastructure when it fails us so much and ends up costing us money yet we still pay for service fees that are sky high. I am disappointed with FNB and their staff especially about the fact that call center staff told me that I am not subscribed for online banking while Kevin told me a story. I want my fees back for this month because FNB has cost me instead of helping me especially since it was their FAULT.