Deteriorating service and value

I made a transaction on the 11th of January on my app an instant payment and the previous day I had made a similar transaction to the same account holder to my surprise there was block on the payment triggered by the BANK not myself I would understand if this was new details but I processed a payment under history of payments and consultants are telling me I used a different details but I had simply selected from my list of receipients history to make this payment…after waiting for 12 days with empty promises from consultants and team managers i even spoke to 6 consultants who were quite ineffective in assisting me…I was told that the acc details are not tempered with however the payment has still not reached its destination..logically if i choose from the history the payment would have arrived bcos i didnot re-enter any details…I am starting to doubt the accountability and values of FNB and quite frankly im close to switching banks if this is the kind of service you give to clients…. I cannot say how disappointed I am..you are promised follow through and to date I have not received a resolution nor was i being kept up to date…everyday you use private clients service without value