Un-authorised upgrade

MTN uses a company called Mobile Plus to call existing customers to offer an upgrade. Mobile plus called me on the 19th July to offer an upgrade. I started with the application and then decided to not going ahead after consulting with a friend about the upgrade deal. Mobile Plus has not completed the security questions. I then received an SMS that my application is in progress. I then called Mobile Plus to cancel and the representative confirmed that the application is cancelled. i have received no notification of the cancellation. Then on 20th August I received a notification from MTN that my application has been processed. I then called MTN to query. MTN confirmed that they will send an email to Mobile Plus to query. If i dont get a response within 24 hours I must call. So I called and they said, call after another 24hours. So I called back 7days after. Then they tell me they have sent the email as part the original call and thats it. Then I am instructed to call MobilePlus directly. Then I requested to speak to the supervisor Brian Shabalala. Then im told he is busy with another customer. Then i asked to speak to the manager Mathlaco Molebo and ive been told he is not in the office. Then i requested the supervisor to call me back. Which up till now has not returned my call. It seems as though MTN is not doing their due diligence and proper governance when selecting their service providers and that management has very poor oversight and controls over who they do business with and how that business is conducted. Mobile Plus reference MP-***5-1