Jiomart — Jiomart has wrongly refunded the amount to another no which I was holding 1.5 years back.

I had ordered mango which was delivered on 1st May 2022, order no[protected]A, i had logged in by No [protected].
Jiomart refunded the amount to no [protected], whcih i was holding 1.5 years back and had surreneded 1.5 years back.
Further Jiomart customer service is constantly repeating that since i have raised the complaint from [protected] hence they have refunded to the said no.
I dont have the no in my possession, there is no way i can login by that no.
Please help to resolve the issue