Decorfurn Somerset Manager

Still so shocked at the service I received from a MANAGER at decorfurn somerset yesterday OWEN. I cancelled my order online as it was going to take away to long to deliver and decided to purchase these items in store instead for a quicker turn around time, one of the store ladies took me to the front to give my details and find out how much credit I have available on my profile as the online order had been credited to the store for purchases, this manager jumped up and started yelling infront of all us CUSTOMER included, there were still a few customers left in the store before lock up paying for items. This made me so extremely uncomfortable as this was the process I was told to follow from the online team at decorfurn. I then addressed this with him and he started apologizing saying it's the online teams fault they put my order under the wrong codes, this had nothing to do with me and I will never accept the way I had been treated, I was even more shocked to find out this wasMANAGER of a store, how do u treat people like that and think it's okay, how do u shout at a customer bringing u a sale of nearly 5000. This had left such a bitter taste in my mouth, completely let down by this store and customer service