Airtel — Recharge not reflecting and phisting caller!

[protected], this number just contacted me saying its from airtel customer support, is this airtel number? He asked me to install teamviewer... I did raised a ticket via app but this looks like a scam cause my problem doesnt need any reason to install team viewer. If this is done by airtel then its something. All i wanted was a refund, cause i have a problem about recharge not reflecting. Even gave my upi transfer id, i dont know why airtel allow this like how the info was leaked. So...
Also, i did a recharge for this number
[protected] this number with rs 379 from my airtel app. During that time it was slow and i was useing paytm upi. It was getting processed for a while and it doesnt reflect on the number [protected]. Ive contacted paytm already but said its already paid as shown on screenshot. Upi id reference is
[protected]. So i recharged at local shop. But now it still havent reflect after many days i mean the first recharge via app. All i want is a refund of rs379 which i lost.