Meesho — Mesho has delivered a less quantity product and not returned the money

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I have purchased this product from Meesho and instead of 5 quantity they have only delivered 1 quantity.
I have raised a complaint on the same day of delivery but they are now not returning my remaining amount of the product which is not delivered.
They are completely making their customer fraud and no value for their money.
Please do a proper action on this and resolve my issue.
Thanking you.