Thanks. I'll file a complaint today. If they're competent, they'll do their job, hopefully.
And actually I want a dongle/device that can do both 3G/4G. One question tho..Since the speed in my area is restricted to 7mbps (h), would an upgrade of dongle make a difference in speed? For instance, I'm using an old dongle and the speed I'm getting is around 3-4mbps, so will it go beyond? Or I'm stuck with it?
I have bsnl ftth in my area but it's ridiculously expensive. EvDo wouldn't get past 100KBps. Only Jio and Airtel LTE goes past 40mbps.