Not a Happy client

'I've been calling tracker from the 27 Th of march 2015 to activate my contract and i was told i owe R 680.00 of which i paid on the 27th or match and was told it will reflect on their side on the 31st of march i called on the second and it reflected and i called again on the 2nd of April to inform them that the unit hasn't't updated an can they please fix that and i was told it was hard locked and it will be sent to the relevant department and i was kept on hold for - 8 min and the lady told me that it will be updated within 24 hours and on that i must check on Tuesday the 7th of April it will be OK. i called on the 7th to inform them that it hasn't't updated and i was told that they are dealing with it it will be sorted by today and dome one will call me when its done,today i checked again and still the same problem and i called and spoke to Moses and he told me that the lady dealing with it sent the request to MTN yesterday and that i must wait 36 hours fr the unit to be sorted, my problem is i've been calling then daily and i was told different stories, so id like some one to call me and tell me what i must do now.