MTN Contract Suspension and demanding full contract sum of money in 14days

I have received notification from MTN and have 14day to respond and I did but still they cancel all my contracts deactivated my accounts and demanding now a lot of money before the 14 April. As per the letter below I was given 14 days .When I called the service provider they will come back too me in two weeks .

I did reply to them and say I will pay 2000 on the account.

If you don't pay the above amount or call us to arrange payment within 14 days of the date of this letter, MTN will take legal action against you. We'll also be forced to blacklist mobile devices given to you under the subscriber agreement.

Now my number is off I cant to no calls I need to inform everyone about this. Query 1/***9