i was an I Talk customer, MTN has taken over I Talk. Firsly my navigator is not working beacuse i dnt have a 15 digit number on my sim card. i did report this but MTN has no sim cards. Secondly about your credit limit suppose to be for month to month not including the new months calls as well. Yes credit limit is great but why you add it the previous month to the new month. MTN needs to give information to there customers. I was a loyal customer but know i have too think twice about the service i am getting from MTN. a very disappointed MTN customer 083 7888929 read full review »