my cell phone blocked

I called MTN on the 22 January 2016 to block my wife\s lost phone. They blocked or blacklisted my phone instead of the lost one since then. I visited the head office 3 times to be helped they did try and nothing happened since my phone is not working and I was also advised to do swim swap which i did. I send MTN SMS and no body responded so far.<br> The Ref of the complain is ***6<br> I have given them the Affidavit and copy of my certified ID. The cell number works in another phone but not in my blocked phone and I am paying the contract fully even if the phone is just like a demo to me. "