Unable to change an expired contract to pay as you go.

I have tried 4 times now after the contract has expired to change one of my other numbers to pay as you go.

Either I get transferred and disconnected or there is a problem with the system and you can not help me.

This is tantamount to holding me hostage on a month to month contract basis.

I've been with MTN for over 20yrs and the service just gets worse and worse every year.