Airtel — recharge through my airtel app

I wanted to recharge someone else's number from my myairtel app.in process, my own number gets recharged again, whereas i was already using the 399 plan. The steps i followed are:
1. Tried to recharge 399 plan for someone else.
2. Clicked on the best offers for me. (I wanted to check whether i can recharge someone else's number from my best offers.)
3. Clicked on 399 plan.
4. Chose to pay through debit card. (Thinking it will ask for the number to be recharged after payment mode selection.)
5. It generated otp.
6. The otp gets auto filled and also, gets auto submitted.
7. I never clicked the submit button. And my account (Which already had 399 recharge from 15 september 2017) was recharged once again by 399 rs on 6 october 2017.
8. Also, i am submitting this complaint on 16 october 2017. Because, i have been trying to talk to the customer care representative, but you guys are like cbi. To talk to the representative we have to dial a million random numbers.
9. I talked your representative today (Someone named inderjeet singh or daljeet singh), he was very bad. You can check your recorded call, which you record for "internal purposes". Kindly use it for a decent purpose.
9. I would really like to complaint about the representative. He was non cooperative. Didnt know about the myairtel app. He said things which were untrue. Didnt listen to me. Kept on interrupting me, while i was trying to explain.
10. I would like to get my money refunded in myairtel app or extend my service for which it was double recharged.
11. Your myairtel app has serious problems.
12. Airtel user since 2010. Would seriously port since this was third such disgusting thing happened to me.
Thanks.