Amul / Gcmmf — Refund on my protein lassi mango flavor.

I placed order of amul lassi and payed 320rs the after some minutes i canceled it then i wait for my refund it didn't came then i called customer care they didn't recive and aftet some time i called them again and then they didn't even ready to hear my complaint and cut the phone then i emailed them and messaged on instagram still they are not replying i want that money back
thank you