Rude and Demeaning

I had two bad experiences in the same shop [The FIX Centurion] by two different sales assistance in two consecutive days. The first was when i tried to fit a jacket on the floor and a sales assistant lady rudely told me to "go fit in the fitting room". I then left and came back the following day to lay-bye the same jacket. When i reached the counter a different lady informed me that their system is down and she wouldn't be able to process the lay-bye, i then asked her if she would be able to keep the jacket aside for me till around 6pm the following day when their system is up and running. She informed me she will only put it aside until the following morning and should there be an online order i wouldnt get the jacket which was the last one and that i should rather pay in full. I really dont understand why I as a customer, I'm given options to buy an item but i can't apply those options, and given their system is down, the least that could have been done is keep the jacket aside for at least 24 hours as it is not my fault their system is down and not tell me online purchases take precedence over over the counter sales, the lady was very rude and demeaning. And when i tried to tell her to give me at least 24 hours she told me to move to the side as i decide while she helps a customer as if i was not one. And i genuinely was interested in buying that jacket. I'm very disappointed.