Snapmint — Request for refund since last 2 years but not getting any amount since then.

I purchased a personal PC on 1st oct., 2022 for office use on EMI basis. but i cancelled the order before shipping as the price decrease as soon as i bought. so, i cancelled it and returned to the merchant site. but unfortunately, paying the EMI amount was continuously running. i complete my EMI dues on 6th july, 2023. and raised a complaint to snapmint and request for a refund so many times about my case on Apps (i.e. snap mint) but sometimes they denied my request. please kindly help me resolved my case sir.