Horrible after sales experience

This is the worst experience I've had ever. From the time the device was delivered its been a nightmare. I was offered a contract for 140GB including a plug in router. That sounded like a good deal plus I wanted something for my boys as they constantly ask I hotspot them and drain my battery. The sales agent didn't disclose that the 140Gb =30 gigs you tube data, 75gigs night time and the rest is any time data. Like seriously? Who stays up in the wee hours of the morning to connect. I asked to cancel the contract and I was told to drop off the router and sim at any mtn store. I drove to about 4 mtn shops and I was turned back. Told they were a franchise. Momdo called and promised that they will collect the router after I complained about this. Was promised a call back on the 22nd to confirm when collection will take place. I'm still waiting for that call. Now they have the audacity to debit my account after I cancelled within the 10 days cooling off period! My emails go unanswered in the meantime I'm waiting for an uncapped package from them! What a drag! Selene is quick to ask for her service to be rated yet, she renders none. CPA is violated alot by this company. And the MTN deco on Twitter is no help too