Exceptionally Poor / Non-existent Customer Service
Upgraded my MTN data contract on mtn.co.za - and Mondo were handed the deal to process.  Horrendous experience - definitely the worst customer service of any telecommunication co in SA (and we know how low that water Mark is!).  7 weeks on from logging a complaint, 2 hours + on phone speaking to call center agents and still no resolution.  I get a email every second week stating that they have tried calling me (which I have no record of or missed call) and apparently they cannot resolve anything over email (suspect it's too convenient for their clients)!  steer well clear - MTN too should be ashamed