No service from electricity dept

We have no electricity but all our neighbour's do have. This is over 24 hours now. Our account is up to date. I have reported by phone and whatsapp a few times. A technician phoned today, then got lost, and the disappeared and does not answer his phone. The call centre now gives a message that All our agents are busy and then cuts the call. Whatever one do next ? We work from home and are severely compromised. Our food will spoil soon... can we claim for this ? Frustrating.