Spend thousands and still treated like ********

Dear Sir/Mam,<br> <br> I went into your somerset mall branch where I regularly purchase clothing items on monthly basis during this time of the month. At 13:00pm I walked into your store with my backpack I recently acquired from London.<br> <br> I then made my way to the Guess range and was browsing to what was new, I found what I was looking for, I then heard a voice saying boss, hello boss. I turned around and was asked if they could please have my backpack. I asked why as it was secure and had my macbook air in it. The person named Sebelelo told me he needs to take my bag, I told him NO you cannot. I just received this from London. not knowing him I didn't tell him the contents of the backpack. He then insisted, I said no. I did suggest what you can do is before I leave you may then after I purchased my items be more than welcome to search my bag. He declined quite abruptly. I asked why he said we trying to protect the store.I was now not pleased as this is treating me like a ********.<br> I cant add the full complaint Im waiting over 4 days for someone to contact as promised. No one has.