Webafrica failure to correct their mistake

I was mistakenly disconnected Wednesday 9th December, I was informed that they have to apply to openserve for a Bnumber, it would take 3 to 5 working days. I have reach out to them everyday, always the same answer'3 to 5 working days) Today(4th working day) they now want to escalate. they also blame openserve .... I called today ,17th December(which is almost an impossible feat as they push you towards the whatsapp live chat)I was informed that my issues is escalated to the brand manager who will talk to openserve, it should be resolved tomorrow. When I asked for the brand manager's name, I was informed it's Goolam, when I asked for his surname, they wouldn't provide it, when I asked for his telephone number, they refused to provide it. It has been a week and a day and I am spending thousands by using my mobile phone as a hotspot to connect to video calls to be able to do my work. The whatsapp live chat is also a complete waste of time as it could take 3x hours to get a response ...they also promise a call-back that never materialize.