Mcdonald's India — money refunds

Address:

Ground Floor, Phoenix United Mall, Pilibhit Bypass Rd, Mahanagar Colony, Bareilly, Uttar Pradesh, Bareilly, Uttar Pradesh

On 9/7/19 i made my order in bareilly mcdonald's their staff member heard my order worng and after making the payment (Rs-474.64) with my card, i told them this is not my order then they took my order again and i have to make the payment (Rs-579.64) again! They said the money (474.64) will be refunded within 7 days and give me the slip, today is the 14th day it is still not refunded! I even call them they said it's not in our hands!
Kindly help me with this matter.