Consumer Redressal

My tata docomo Broadband is not working since 15th Jul, I logged a complaint on 16th Jul. I go a confirmation sms for complaint no (496305217) and a technician (ETKOJE0346 with Mobile no 9239164191) was supposed to reach my premises for repair. But no one turned up till today despite multiple calls an folowups. Every time customer care would say that they would escalate the matter and resolve asap. But it was not. Today again I called them up only to know that the call has been closed today(20th July) saying that issues has been resolved and customer is satisfied. I don't understand how they could do this when the issue is still pending or rather unattended. They said that I could raise a new complaint. But why would I raise a new complaint when my earlier complaint was unattended. Due to unavailability of the internet service I am unable to continue with my office work. Please help.