MTN Cavendish - be afraid very afraid.

I needed to cancel our wifi contract which we had used in our cottage for my daughter, who had moved out. I returned the router plus cabling etc (in the original box) on the 18th January this year. Long story short after 7 months we are still PAYING, despite assurances from the staff at Cavendish that the contract has been cancelled and a refund on the way! We have been in at least 6 times and given reference numbers (not sure what for as jack **** has happened!) On one occasion the consultant said they don't take action on cancellations that were taken out online, only if the contract was taken out in the store. The contract was taken out in their store. Just a smidgen of the ******* service.The store manager Shirley ? confirmed to me that the cancellation has happened AND I could either get a credit on my account (as my cellphone contract is also with them) or refund - I said refund to me - into my bank account. About a week or so ago I needed to upgrade my cell account and went to Constantia Village - sorted no problem! At the same time I enquired if they could help with my router/refund - they tried but as it's a Cavendish deal I have to deal with Cavendish. Today we went back to Cavendish to find out why I am still being debited for the router (despite Shirley's assurance of a credit)- I wish someone could tell me the truth - but I now know they are just *********** - on a grand scale. The consultant tells me the account was cancelled on the 18th June. Remember I took it back on the 18th January! But she can't tell me much more than that.Made the trek out to Constantia Village to see if they could help - which they tried their best to do. What's transpired is it seems not all the paperwork was correctly submitted (?). Consultant at Constantia Village (very helpful) made contact with some or other regional manager who she said will call me to try and resolve this.Maybe they will maybe they won't. The struggle continues. This review is sent as a warning to anyone considering dealing with MTN. However my one star won't get them any lower.