Bad Customer Service

On the 19th March i called requesting for Telkom to move our office line and was told it takes between 10-15 working days, okay fine I waited and nothing happened. I've called them more than 3 times already and was told in the system it shows the order was complete but how because i'm still without the office phone? They been saying they will follow up and get back to me but no one does. Till today i'm still waiting for Telkom to move our line to the address!!!