Pathetic Service as expected

Over a week ago i upgraded from ADSL to fibre, Telkom has sent the Dlink router / modem - the fibre line is working, Vuma states its a problem with the Dlink, apparently you cannot use a dlink with fibre lines, we have spent 4 days phoning 10210, 10213, to no avail, still sitting with telkom dlink, no one has come back to me and we have been charged R1000 for this dlink router which does not work. A technician from openserve (telkom) came this morning to test our ADSL line and states he cannot help us with fibre but states that we should not have a dlink in the first place - we never asked for it, now we have it and were charged. Can someone who knows what they are doing please come back to us urgently as this situation is absolutely not on. How can you charge us for something that we were never meant to have and you send it anyway. Your rep assured us we would have no problems with the migration, but all we have had is problems typical of Telkom and here we sit with the no response and no help. Please address this issue as a matter of urgency