Bad customer service

I have been without connectivity since from 25 March 2025 in the morning, I contacted the customer service via WhatsApp and I was given the reference number, informed that the technicians will come to my place to check what might be wrong. I can't even go anywhere because I'm waiting for them, worse part this affect my job because I work remotely using internet, today is the third day when I contact the helpdesk, I am told that they have assigned technician to come and check. They act as if this service is free, and I am paying but not getting service when needed. This is putting my work at risk. I need an urgent intervention.