Mcdonald's India — Im complaining about the offer not redeem

I placed my order through drive In McDonald’s Muzaffarnagar
I have my redeem order to them and they have placed only one order with that offer
But I placed an order of 6 burgers means 3 repeated offer
As it was mentioned on the offer that it is repeated offer and they didn’t give the offer on more four burger
Very disappointed with company and staff
As the offer is available for only 5 min so they just took more time to create only one order and after min the offer get closed .
So very disappointed with the staff behaviour and offers
When it is clearly mentioned that it repeated offer so why they haven’t give me that repeated offer