Pick and Pay staff *****ing

I could not be more aggravated... I purchased a few items at your store about 30 mins ago, when i was at the counter and paid for my items I noticed that i forgot to buy an item and asked the security at the front door to keep my bag with him for a minute, When I arrived home and noticed the I was missing a loaf of bread and double checked my slip to confirm. There is only one conclusion here and that is your security guard that decided to pack my bread away into his bag. I urgently would like a call and want you to look at the camera footage, I have the slip of time of purchase. Due to this I will never again support your stores.