Talking to bots

webafrica billed our landloard, even after a change of ownership to us has been confimed on at least 3 instances. now it turns out that nothing has been done (no change of owndership etc.) our account is still pending. Our landlord has an extra line now and is getting billed on our behalf. Noone at webafrica seems to know how to resolve this, or could at least be bothered to find out what's happening