Cancellation of account

On the 9 Feb 2016, I called ur call centre and requested that my account be cancelled. I was informed it will take 5 days. - then called ur center again a week later and was again informed that it will take 5 days. I have sinced received a few emails from ur retention unit requesting Y I am closing my acc. Explained to them that I am unhappy with ur service and also u cannot match ur competitors. I have also experienced a lot of problem regarding ur network, where calls are being dropped and no signals. I have sinced call u numerous times to try and resolved this matter and to no avail. These are my reference no. Mtn *** retention. ref ***. 26 feb.ref ***. 1 mar. I have received 3 emails from ur retention unit requesting y I am cancelling my account. However, once I give them my response I have never heard from them again. What's the point of a retention unit if they are unable to do their job. They cannot reply to a simple email how will they be able to retain business. U better off getting rid of the whole dept. As they serve no purpose. Let's see how long it will take to respond to this...its almost a month later since first query was logged. Scary.