MTN SA and Mondo

I bought an online deal with a router and MTN data from Mondo MTN and the router was non functional and couldn't activate ,I then called and was told to go to the nearest MTN for assistance which was day3 and the MTN store turned away and said doesn't assist with online purchases and was told to take it back where I got it from(courier) I then called Mondo MTN to cancel the order and requested a ref no and was told dsv will fetch it ....the 10days cancellation period lapsed while calling they said on the system it's cancelled and only waiting for courier services....then when I continue calling their Mondo MTN customer care service is always offline and MTN took out a debit on my account X2 both companies do not want to account for a service I never received....I would never recommend Mondo and MTN they are running a **** and from here am lodging a complaint with NCR......never again