I have been waiting for a paid-up letter for almost a month, and the delay has caused significant personal and professional setbacks

I have been waiting for a paid-up letter for almost a month, and the delay has caused significant personal and professional setbacks. I have lost job opportunities and continue to face challenges applying for new roles due to this unresolved issue. Each time I contact your support, I receive conflicting information. One agent told me the case was escalated and I would receive a response within a week. A week later, I was told MTN does not issue paid-up letters. I called again and was informed there was no record of my previous case, so a new one was created. When I contacted the MTN store where I cancelled my contract, they told me they do not retain cancellation proof. This experience has left me feeling helpless and frustrated. I respectfully request urgent assistance in resolving this matter and issuing the necessary paid-up letter so I can move forward with my applications and restore my professional stability. Thank you