Airtel — Payment debited

I got an email from Airtel in response to my complaint to the PMO stating that they have made sincere efforts to resolve my issue with utmost seriousness. I disagree with them when they say that Airtel has looked into resolving my issue with utmost seriousness. My internet outage occurred around 5pm on 17th of May. And it was finally resolved around 1pm on 25th of May. After *188 hours*. In all seriousness, this is not the definition of prompt service. I made multiple calls to AIrtel customer service over the time my internet was down. Each time I was assured by their escalation managers that a technician would come soon and look into the issue. Day after day that did not happen. Until yesterday i.e. 25th May. And yet they have the nerve to say it was resolved with utmost seriousness?

In all my life I have never seen such apathy on the part of any service provider. I faced the same issue a few weeks ago i.e. on 25th of April. And that time too the response from Airtel was extremely slow. That issue was finally resolved on 1st of May. Two such instances in a matter of 3 weeks and Airtel claims they are committed to prompt customer service?