Air India — I have been charged but no seat has been booked

Address:

Hyderabad, Andhra Pradesh, 500052

My parents were travelling for new york to india via delhi so i booked proffered seat for them from my sisters card and mine so the page has just skipped the 1st time i thought it was just refresh so i did it again so i figured might be because it is american card it wasn’t working so i booked the seat with my card that is when i realised i have been charged but the seat wasn’t booked i called the customer care several times they just asked me to contact e-commerce team and i did i did call them lots of times the whole day no response i emailed them lots of emails no response i have been robbed and they haven’t booked any seat or nothing happened there was none find issues nothing happened i just want my money back please help.

My parents had to travel with their legs stuck to the front seat and very uncomfortable flight even thought i paid for their comfortable travel.

Traveller - sridevi attluri
Pnr number-j5k1w