[Resolved]  Idea Cellular — idea iz-idea cms wrongly deducting my balance

From 30th aug 2019, i am getting calls from unknown numbers and when i attend those call it get disconnected after 10 sec without any input from my end. After that i receive message that "thank you for downloading contestpack from one97 and your have charged rs 5". This has happened me twice till now. And when i called customer care of idea they are saying we don't know any thing related to this contest and you might have clicked any link. I told them that this happening after i am attending call from certain numbers which in-fact are idea numbers. They are not giving me any solid details regarding this issue and just dogging my questions. So please help me out and get me my refund.