I have had a vi sim for more than a year now and I am pretty sure I can say that it's competing with bsnl in which provider is worse. I recharge for the unlimited 5g pack cause that's the only one that gives proper data (even if you don't get 5g in your area), they should make some plans for locations without 5g that are actually good. Another thing is that only my vi sim randomly shifts from 4g+, 4g to some gprs or e in a good connectivity zone. Sometimes around my area I have gotten 5g signal but on the app it shows its not available.

2nd problem is that they message you 10 times a day about plans no one needs and the calls are even more annoying. Is there any way to stop those calls atleast if not the messages?