FNB LIFE DEPARTMENT PROOF OF PAYMENT

I have problem with FNB claim department they refused to give me proof of payment. My bank asked for proof of payment for them to release money then they couldnt provide then my bank said they will reverse the money still they don't want to help. I am curious if they have really paid this money? I don't know. I want proof of payment Claim department or else bring the money that you re were always taking on my father's account. I won't keep quite until you give me that proof of payment.Whoever made this transactions I need proof of payment what exactly you were doing on system if you don't have those records unless there is something you are hiding on the transaction.