Dissapointed. Useless company this Mondo and their MTN

These guys are just useless. I got a 36 MTN contract facilitated by these Mondo people through the MTN website. They advertised two devices for R689, but this was a lie; I am paying nearly double this amount because my bill is R1104. So over 36 months, I will pay R39,744 for two phones instead of R24 804, which is R14,940 more than advertised. I sent a query on 21 June and was promised that my issue would be resolved in 2-3 days. I called after 3 days, and the story changed because the turnaround was actually 5 days. After 5 days, another one of the Mondo people escalated my query. I was back on day zero because an escalation resets the query; she told me it would take 14 days to resolve this issue. My 14th day waiting was on Friday 9, when another person told me to wait until sometime this week. Still, everything should be resolved by Wednesday 14 July. She was lying because today is the 15th, and this matter is still not resolved. I know when I call again, they will tell stories about the current riots disrupting their service blah blah blah when the truth is that they just don't want to resolve this issue. I am only left to conclude that these guys are just ********. As for MTN, which was a partner in this thing which I'm sure is a ****, they simply closed the query without even checking what was wrong or checking if I am happy with whatever they called a resolution. They didn't even bother to inform me that contracts signed online are facilitated by Mondo. Instead, I was told that I am being penalised for renewing my contract early & other lies. These guys though, they religiously send all invoices on time and run their debit orders without fail. I think they are just a bunch of ******.