Poor retention of existing customer

Being a loyal customer with Vodacom since 1994 they treat you like **** when the staff member at cancellations convince me today to rather do an upgrade instead of cancelling the contract.

I am willing to upgrade but I will loose all the balances on the existing contract which I have to pay for end of May which only expire by 30 June 23 of the existing contract without any compensation.

Vodacom you are absolutely *** to keep an existing customer!!