MTN error

I made a payment of R1500 in July and called the contact centre to make an arrangement for the outstanding amount, spoke to Mr Dlamini who captured the arrangement incorrectly now my line is suspended and when I called in today I spoke to Nomveliso who was very rude, she said the line will only be activated in September and she cannot escalate until I decide to pay. All I wanted was to make an arrangement to pay on the 23rd of August and this was captured as July and the error was on the Agent' s side not mine, so I cannot be inconvenienced for this. Please fix the arrangement on the system and open my line.