NON DELIVERY MONDO MTN

On the 7th of June my contract was approved, on the 8th of June I noticed they have the wrong delivery and contact details. I immediately phoned and sent an email correcting my details. I was assured that the courier service was notified of the changes and that delivery will be during that week. I received an email from MTN informing me that the courier emailed them, failing to deliver because they cannot get hold of me. This, after I already made the necessary changes. Today after numerous phone calls and emails.....still no delivery. When I enquiry at the courier DSV, I am told they returned my parcel to MTN, when I contact MONDO MTN, they say the phone has been sent out to the courier for delivery. Two weeks, going for 3 weeks later.......still no answers on the issue.