Poor Service on a Upgrade

For unforeseen reasons I had to consider Debt Review last year and I have contracts for 17years with Vodacom, still paying every month. Never skipped one payment and now that I have an upgrade due, they cannot upgrade the device / contract due to my debt review status. I feel it is unfair and not in the clients best interest, I know my credibility is influenced, but you still pay every month and now they refuse you an upgrade, just because of this.... All I ask is for an upgrade, did not ask to increase the package etc. They do not explain anything to the client, just sorry... they will be loosing a client that are currently paying at least R1400.00 on contracts that we have for many years now..... !