Impossible to increase Credit Limit

I am at the end of my patience with your ****ty service. For 3 weeks now I have been trying to do an upgrade but I am unable to complete it as my credit limit is too low and requires to be increased.

Last year some ***** called and got me to do a SIM only upgrade on all 3 of my lines and somehow he put me on a business package, at the time i did not want to upgrade my devices. I was told I will need to pay in a small fee to do the device upgrades if i chose to in the future

So now I want to do a device upgrade and I cannot get it done. My credit limit is sitting at R934 and the device I want to upgrade to will cost me R1400+. Like I said previously this is now going onto the 4th week and it seems MTN is completely ***********.

I need my credit limit increased to at least R3500 so I can complete my device upgrades on all 3 numbers.

My other issue is I have not received any form of feedback on any of these queries and I have spoken to a credit controller named William Meintjies and emailed him and still I get no response or assistance.

All my reference numbers so far:

*** *** *** *** *** ***

order ref: ***

REQ*** Escalation ***