Vodafone — Unauthorized charges towards some game app

I have not downloaded any app related to
1) mydala powered deal
2) ppu_ game
I have a prepaid sim card since almost more than 17 years... But this has happened first time in this month only.details are
First RS 10 was deducted towards ppu_ game on 13/04/2021
Then RS 49 deducted towards mydala powered deal on 14/04/2021
Then on 25/04/2021 RS 10 was again deducted towards ppu_ game
Please look into the matter at the earliest..and I request you to refund the amount deducted at the earliest. I had never accessed or downloaded any of the above said app. Following are the msgs received.
Hello!
Thank you for choosing to access mydala powered deal,
You have been charged Rs. 49
Your balance is Rs. 59.56

Hello!
Thank you for choosing to access ppu_game,
You have been charged Rs. 10
Your balance is Rs. 108.56

Hello!
Thank you for choosing to access ppu_game,
You have been charged Rs. 10
Your balance is Rs. 47.28