New empty contracts

Upgrade our contracts on Sunday 17 May 2015, waited and finally the sim cards are activated Monday morning. Unfortunately all airtime, data and smss that was there is now gone and nothing on the new contract has been loaded. Now I'm told it will take MTN 7 days to investigate where the airtime went and in the meantime, sorry, we cannot help you. You are paying for a two contract but we cannot deliver the service. Supervisor please - Sorry, phone back after 11. This is after waiting for 25 minutes just to be able to speak to somebody. What must we do with the very expensive phone and subscription for 7 days while you investigate? Are you going to give a credit to alleviate the burden of incompetence? Spoke to Bianca who upgraded the contracts and she promised to phone me back within an hour and day later I'm still waiting. How much longer must we wait for MTN to wake up and provide the service they agreed to? Phoning the call centre is a waste of time and phoning the branch where we upgraded is a dead end as well. Two days on and nothing!