Blue Dart Express — Get wrong order

I ordered the product ( bell bottom) from Meesho on 13 September 2021 and on 17 September 2021 delivery boy delivered the product and when I opened the order I found that there was no bell bottom instead of having an old and used jeans. I called on number mentioned on the bill but the call owner said it was fake. I called blue dart delivery boy he said it's not his duty.So I called Meesho customer care they asked for bank details. Then I dropped an email to blue dart they replied with sorry but when I asked how I exchange my product they haven't reply me yet.