No username password

I have phoned them multiple times, emailed them even more times without reply. I even got the openserve techi to phone them but still no solution. I am a new customer that had them come and install an adsl line to my home through openserve. It has been a week since said line was installed an they have not yet send me an username or password to configure my router. I have tried to be patient but it is for my business. I am losing clients coz I cant provide wifi. Everyone there at vox points the finger to someone els and noone can help. Everyone just says they will pass it on to the person doing my line. Who is this person what is he doing? I understand it is COVID but we must stop blaming poor service on the pandemic. Anyway of this continues I will move my line to Telkom.