Incompetency and ******** billing

I am writing this email with the greatest dissatisfaction and irritation.

For the past 3 years, I have been fighting this issue with you and Mondo regarding this account.

1. I had enquired with Mondo for a LTE wifi which was powered by MTN. The wifi router and sim card was sent to me but never worked as stipulated. 2. There was a return policy of 10 days to it and I had called on the 3rd day and the contract was cancelled as far as I know and there were no obligation to pay anything. 3. For some weird reason, I kept being billed even after I had went to MTN and taken back their router, which they insisted must be fetched by the courier people. Who they claimed will come, and to this day, they have not come. 4. If you check your records, you will see that the sim attached to the router never worked as previously reported but for some reason, you still continue to bill me. 5. I would like this matter to be closed EFFECTIVELY IMMEDIATELY as I DO NOT OWE you guys anything. 6. Failure to do so, I will ensure that MTN is brought under disrepute and in my capacity as an Editor in one of the most reputable media houses in South Africa (if not the largest), I will take this matter so far that a lawsuit will be the ultimate destination for this matter.