Unknown'' number nonsence -Incompitent consultants

Since I changed my subscription, all incoming calls are ''Unknown'' and my caller identification has disappeared.

I chatted to so many consultant who assured me that the problem was sorted but I found it was not sorted. Since 12 feb trying to resolve this.

I am up to my wits. I am frustrated because I feel that this shouldn't be too hard to fix. All I want is to be able to identify my callers as I could before. Why won't Telkom help me???