Ajio — Wrong product sent and now not releasing my refund

I ordered a "AND" brand product, but they delivered me a wrong product of a cheap brand. I have returned the product. After a month, they responded with a mail and said that I had returned a non-Ajio product and I am a liar. I called and mailed multiple times to AJIO customer services. They are just giving me false promises and extending the date of resolution. I need my money back and an apology from AJIO.

Order ID - FL[protected] (Date of order - 13th March 2021)
returned ID - RT[protected]Date of return - 19th March 2021)

I am a research scholar in a reputed institute, and the government paying me well for my work. I don't need to do such cheap tactics like returning a fake product and all.