Eft payment not showing in clients account, money is missing

I am at a point where i am not even sure what to do anymore!! I made an eft payment to a capitec account on 31 March and to date it is still not showing the the recipients account!!! After many phone calls and going to the branch to resolve this with no answers im feeling angry, dissapointed and very defeated!! The recipient sent me bank statements showing the money is not reflecting in his account and i even spoke to a capitec manager to get confirmation of this!!! So the money is out of my account bit not in the recipients account so where is it??? How is ot just missing, gone? How do i write of 15k??? How does this even happen. I am definitly changing banks as im so scared to do another payment and the same happens!!? How can i resolve this? I have the proof of payment and trace id everything for this payment yet it was never received so where is the money???? Scary part is ive seen allot of similar complaints from fnb... so now what???