Airtel — not benefit of recharge

On my airtel app. I[censored] click on 5%cashback on recharge ad then they request u to choose plan then payment option. But they're not required for mobile number. I[censored] have money in your wallet. Your recharge done in your mobile number. But we want to recharge another number. Then u call customers they are also make u fool. For ex. I'm already have a recharge of 399 on my number then from my airtel they recharge me 348 from my airtel wallet. When i call to customers they are making me fool. The customer says that u (I) are receive this benifit in your mobile as 1 gb per day bt i'm using already 1gb per day then i say him for this. They say that 399+348 both are have same 1gb so u can use only 1gb per day. Firstly they recharge wrong and then say u cannot use your 348 plan bcz u have 399 pack. No problem. But where is my 348 rupees. No benefit. Galat recharge krte h koi benefit bhi nhi dete ye bhi koi baat h