Mondo hopeless customer service- AVOID this company

What an absolutely disgusting experience. Got a call from a lady named Adelle Naidoo who dishonestly posed as someone from MTN upgrades when she was from Mondo and offered me a 120GB anytime data package for my upgrade for R209pm. She then put me on a 20GB day and 20GB night package. Ever since, I've spent hundreds of rands calling these Mondo people and after having listened to the recording they agreed that the package should be 120GB anytime data. Then I'm told that someone from retentions will call me and it's been a week and I've been calling everyday and getting the same response that they will email them a follow up to call me. Absolutely amateur operation with zero customer care skills. When I ask for a supervisor or manager, I'm told that they are not in and this happens everyday. No supervisor or manager? If anyone from Mondo calls you to offer you anything, run in the other direction. Pathetic service and dishonest agents. Who is going to compensate my lost data and airtime I've used to chase behind them since the 3rd of February. The people I've spoken to besides Adelle are Kimestha, Trevek, Yolen, David, Kiana, Nicolen, Anisha all hopeless. I want to see whether this gets resolved by Friday.