MTN Bad Data Service

I am very disappointed with my Uncapped Lite 3G 24mth contract from MTN . Between +- 16:00 to +- 00:00 my internet service/speed is almost non existing and this is particularly the time frame in which I need to use it most. I feel that the product that was sold to me does not meet my needs at all and therefor I feel it is my right as a consumer to not be bound to a 24mth contract for a product or service that I cannot use in the time I need it most. I have read previous comments from MTN stating they cannot guarantee the same speed all the time due to high consumption and that there technical teams are working on it. For the moment though they are not sorting out the problem and I basically have no speed at all during above mentioned times thus paying for a service that I do not have. So why should I be paying for the next 24mths for something that does not deliver???? I was sold a 24/7 internet service from MTN which I am not getting...Thus the contract is misleading. Dear MTN my question to you: What would you do if you were in my shoes? I need a solution not just an apology.

http://mybroadband.co.za/vb/showthread.php/394069-MTN-Bad-Data-Service

http://www.hellopeter.com/mtn/complaints/mtn-slow-data-speeds-710982

http://www.ctwug.za.net/showthread.php?1770-MTN-Bad-Data-Service