Unable to obtain Settlement

We have been trying to obtain a settlement for an account from Vodacom Collections and when we enquire at Vodacom, they inform us to contact MBD as the account is with them. When we call MBD on *** (given by Vodacom), they advise that they cannot trace the account on my ID, nor the Cell Number or Account number with Vodacom. We then spoke to Freddy Mthembo at Vodacom, who informed us that the account is with MBD, and after keeping us on a line for quite some time, informed us that they NOW have the account and transferred the call to MBD whee we spoke to Zanele who gave us a settlement, her contact number: *** (different from the other number), and also provided a Standard Bank Account number and branch code to pay funds in. While hubby was talking to her, SHE CUT THE CALL, we still needed to know what reference to use, and needed written confirmation of settlement and banking details. We tried calling Vodacom, and now the cell number has been removed from the system, so we cannot talk to an agent and the contact number given by Zanele does not exist and when we call the other number given by Vodacom, MBD can still not locate our account. So how do we PAY?