Adidas — Refund amount not received so far

Address:

Plot No. 53, Sector-32, Institutional Area, Gurugram, Haryana-122001, India

Date of order: 21 February 2022
order id: AIN00525853
I had placed my order on 21 February 2022 and it got delivered on Thursday, 24 February. After a day or two I had raised a request to return the delivered items and within 1 or 2 days a courier guy came and picked up the items. Few days later I had received an email from the Adidas itself that the items returned by me has successfully reached the warehouse and I will be refunded within 14 working days. But so far I have not received any refund amount. I have contacted the Adidas customer care team so many times and every time they make some silly excuses like,
the bank account number provided by me was wrong
returned items were misplaced on their way to the Adidas warehouse, etc
But I have done every thing that is possible from my side and still I have not got any refund amount.
Please help me out as the amount of refund was not small and above that it is something that any should not experience.