Airtel — open network - fake

I had done a complaint to airtel customer care via mail and call before 10 month. each and every time they are telling about the open network team but till the time I didn't receive any call from their side . I'm using the same sim for last 6 years . I am facing this issue from last 10 months then also the team is not responding nor doing anything to improve the network . Its only seems that the airtel is telling a lot about open network systems are all fake . I'd lost total trust in airtel and I planned to switch to other network .

Thanks
Akhil
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