Shallcross McDonald's and *********** staff

I would like to know how an order placed and paid for via the website around 15.30, just vanishes off the system.

I have proof of payment as well as the order number, so where is my order? 1hr 30 mins and still no order.

Shallcross McDonalds is absolutely pathetic when it comes to customer service.

I would like to have a reply at your soonest.