Disgusting service

I've been without network for almost a month now, I've called the customer service line at least 20 times and used their whatsapp chat at least 20 times as well. I was on hold for the calls for at least an hour and a half and the chats took more that 4 hours to respond. I've tried to escalate the issue of me not having any network (and I work from home) all these times and still nowhere near an answer. They keep running me around in circles and it never gets escalated. When I arrange a call back, it's always 48 hours later than the scheduled time, and the most recent time, the technician said he had to call me back because he has a meeting and then did not call back!