Still don't know why they discontinued my number

last week my contract expired I asked Mtn the glen to move it over to prepaid they told me I would be able to call the call centre and sort it out I called them they said some one would call me back. a few time my phone rang when I answered it nobody was on the other line ! now my number has been off for over a week now So I have tried to call the call centre if they don't drop the line whilst waiting for an operator they say it will take 2 - 24 hours now I have had it on Monday the 13th April my husband called the content centre the man Farose told him every one miss filed the ref numbers in the wrong place . and assured my Husband it would be resolved by Thursday ! tomorrow . I would like to find out if this is mtn's attitude why should I pay them at the end of the month . As my husband is also with MTN he has assured me if my number is not active by Thursday he will also stop paying MTN as they are in breach of contract as I never asked for the number to be deactivated and asked for the transcript that says differently . latest Ref Number ***.