Migration off nrs from contract to pre paid

I send a mail to [Email Removed] on 2016-03-01 to migrate *** & *** from contract to pre paid from 2016-04-08(my contract exp date). I phone today 2016-04-09 the call centre and there are no case logged for this migrations the lady at call centre logged case ***0 today. Cancellations did send me a mail back after I send a second mail to ask if they did received my mail for migrations. I give notice more than 21 working days. Please we struggle with Telkom Mobile cancellations dept but the call centres cant help the customers with cancellations or migrations and theres no contact nr to speak with any one at canellation over the phone its only with emails. Please I want to migrate *** & *** from contract to pre paid. My contact nr ***.