Disgusting customer service

I am disgusted at Vodacom and their customer service - I have been a Vodacom subscriber for over 20 years now. For 2 weeks now I have been trying to get my VODACOM phone number unblacklisted from Mtn. They have incorrectly blacklisted my phone! I bought my phone sealed at a store and have not had any other SIM card besides my own in the phone. I have been dealing with mtn back and fourth as they want to blame Vodacom (and vice versa) when on the system it shows "blacklisted by mtn" - I keep getting told by Vodacom that the manager will sort it out as all the paperwork they required is in order.

Doesn't seem like I will get my phone unblacklisted even though I have done everything and provided everything they have asked for to start the process. Promises of the phone working within 72 hours has been nothing but lies.

I cannot understand how a company doesn't provide customer service to a loyal customer and to help me sort this problem out.

Should this not be sorted out at the end of the week I will be cancelling my subscription, laying a charge against both Vodacom and Mtn for false information and blacklisting a legitimate client.