Payments on contract not being updated

Dear cell C Departments of billing and proof of payment not corresponding. For a while now I have been paying my contracts and sending proof of payments to the ********** Email notifications and ALL proofs have been send. I make payments from my FNB new account to the Bank: Nedbank Account Name: Cell C Service Provider Company (Pty) Ltd Branch Code: 145405 Account Number: ********** 059 Account type: Current All proofs are being send and for some weird reason this is not getting updated and I am getting calls that payment are not traced or received. Can someone from the billing or proof of payment department follow up on this.