Rectification of Insurance Form

I submitted a new insurance form because I'd recently gotten an upgrade. However, after getting confirmation that my handset is fully covered, I realised that I had submitted the incorrect number with the correct device details.<br> <br> I then sent an email, on October 27th, to Insurance Queries regarding my predicament. After getting no form of correspondence, I then called on December 23rd and the account holder's details were requested in order to make contact and verify what I wanted to rectify. After being put on hold, I was told they cannot reach the account holder. The account holder did not receive anything and even though I insisted that I was with the account holder at that moment, I was told 'a Supervisor' would be in contact in the next day or two. Patiently, I waited. Nobody made any form of contact. 7 days later I decided to call back and find out what's going on. I called twice, was put through to insurance both times and nobody answered.<br> <br> If something happens to my handset while I'm trying to rectify the submitted information, what's going to happen?<br> <br> I need to rectify this ASAP. This kind of service cannot, honestly, be acceptable.