Arguing with a customer even after providing proof of payment

I have a complaint regarding my account and even after providing proof of payments, Yusrah is arguing with me saying I have to make payment on my account when it’s not in arrears. She said that August wasn’t paid - and it was as I provided proof of payment for July, August and September. She is refusing to unblock my account and trying to argue with me even after supplying ALL proofs of payment. Could someone else contact me - I would like to speak to a team leader