Airtel — mobile prepaid recharges

These mobile companies are fooling & cheating the people in name of recharge. Suppose your prepaid plan is valid till 31st march & you have money in your mobile account. So your 28 days plan is valid till midnight of 31st march. So you leave it thinking that once you wake up on 1st april & you mobile services will not be active then will recharge it. But as mobile services are not active so you can't recharge also, so you are forced to recharge it on 31st march & your new 28 days plan starts from 31st march when your previous plan was also active till 31st march, so this way you lost 1 day from your previous plan & airtel got that benefit by cheating you this way. So basically you generally use services for 27 days of 28 days plan, but still pay for 28 days services.
Now if you didn't recharge on 31st march, as you have other ways to recharge your mobile on 1st april morning, but here also airtel cheats you by deducting money just to keep your incoming services active on your number for next 28 days & you also lose all the data accumulated till date. So here airtel gets benefit by cheating you this way. So to have your outgoing services & data services you need to shell out more money. First airtel services are not worth of money they take & over that airtel cheats people this way also. Trai should take strict actions on such companies cheating people in name of prepaid plans.