MWEB - Inefficient, unapproachable, disinterested and *************.

We purchased R100 VOIP time from MWEB to phone internationally. The rate for usage advertised on their website was R0.08 per minute. After approx 6 minutes of our call, the call terminated and we got a message that the funds were used up. As it was a sensitive call, and we had to complete it, we bought another R 100. Again, just into the call a few minutes it was terminated and the funds were gone. We phoned the MWEB call centre and even though we were told we were first in the queue from the outset, we waited at least half an hour for someone to answer. He could not assist, other than agreeing that there was obviously a fault and said someone would contact us. A couple of days later as none had, we logged a query on the MWEB site. We got a message back saying that they see we had spoken to their call centre and someone would get back to us. It is now 7 days and nothing has happened. We have another very important call to make, but need at least half an hour for this. Based on the present uncontractual and dishonest metering that MWEB are applying this would cost us approx R500 for an internet call. MWEB really are inefficient, unapproachable, disinterested and basically *************.