Mcdonalds worst customer care

I'm utterly disappointed with the level of customer service received from McDonald's. In the 14th October, I placed an online order to which 4 items were not delivered because they did not have the items available in a Sunday. Since then I have been trying to get my refund and no one has been helpful. I have called and gave a chain of emails sent with no response at all. Disappointing!!! I want my money back. I actually want to be compensated for the hassle you have put me through and not ever assisting me. Lenny the manager was rude and asked my what should he do?? I already told you, you owe me money. Check your emails I have given you order numbers and you want to get away without reimbursing me, that won't work. I have stopped buying from your establishment and yiu can see I'm a loyal customer. I have had to boycott mcdonald's a d my kids are disappointed. The worst service I have experienced in my life. Greg Solomon, is this how you service loyal customers. Appalled