Vodacom do not keep their word

Vodacom informed me that they will clear my name on the credit buro. I have not received a statement from them that says that my account is paid up in full. I need a new cellphone and can apply for one until they send me an invoice or statement stating that I have paid my account fully. I need a document to clear my name. According to the system I am still in arrears 150+ days with an amount of R591.00 that I already paid almost 2 years back. In our area they have installed fiber, I can not apply for it and my husband does not trust Vodacom since he knows about my bad experions.