Silverlakes McDonald's refuses to assist people in Drive through

McDonalds and Mnr Delivery are one miss, Silverlakes McDonalds refuses to assist people with Ice Cream, and are forcing you to buy the icecream trough Mnr Delivery, I was at Silverlakes McDonalds, asking for Ice cream they refuses to help me, When I left the drive through, I order online using Mnr Delivery and I got the ice cream from McDonalds Silverlakes... What are Silverlakes McDonalds trying to do? Refuses to assist me because Im white? Or where trying to assist Mr Delivery? Or are the Company sharing profits?