I am so angry with Jet and how bad they handle the account

I am so tired and drained with your carelessness when it comes to your customers, last months you made an error on my account of saying i did not make the payment of which i did and i sent you a proof of payment. you promised to correct the error of which you did not. i had to ask you to send me a statement this months after i have made the payment, when i received the statement is does not reflect any of the payment i have made instead it is saying my account is overdue and there are additional charges. which you promised to fix this month and you did not. now i am asking for an amended statement which you promised to correct and send to me and the nonsense you just sent me does not reflect any of the payments i have made. and what you are doing is affecting my credit score very badly and that is unacceptable, opening an account with Jet was a biggest mistake ever.ACCOUNT NUMBER: *** and my contact number is ***. please contact me and let me know what the hell is going on or if i should just stop paying is it does not make any difference.

I want solutions