I did NOT PORT BACK!

On 5th of January 2016 I decided fo port to MTN,all went well. On 22nd of February 2016 I noted that I were disconnected from the MTN network. I called and found out that the port was reversed for some reason, so how did this happen because I am happy with MTN. I DID NOT PORT BACK TO VODACOM so wo did authorise this because this is my number. I am so dissapointed and furious.