MTN - Pathetic Support

I was a happy Nashua Mobile customer until they went belly up and my account was transferred to MTN. My email was still under [Email Removed] and worked just fine. Then I needed to set up the Nashuaisp mail on my tablet. It required the mail password which I did not have. After many hours on the phone with the Call Centre and visiting an MTN outlet, nobody could help me. All I want is for the mail password to be reset so that I can get a new one