Shocking Customer Experience Ever Still in Shock.

On Sunday 13/5/18 I visited the Waterfront Top Shop branch. Saw a chino but when I fitted it on was too big. I asked the store assistant to check whether there other branch had a smaller size. That was around 11 she tried calling the Canal Branch store and came back 10 mins later saying nobody picking up the phone. I left my number and said ill walk around the Waterfront they must Call me when they get through. Waited till abt 1:30 when I went back they told me they still couldn't get through and would try one more time finally they got through and spoke to Dylan to keep the pants for me. I Then went to the canal walk store only to find no store assistant in the shop only the security guard after abt 10'mins and asking everyone where Dylan was only to be told his upstairs somewhere and for him to arrive 10'mins later. And people walking out of the store as there was nobody to assist. To my horror and utter disappointment and bad customer service experience I would like an explanation for this. This clearly means nobody was in the canal walk store thus the waterfront store couldn't get hold of the store as the store was left unattended. This is unexceptable. My worst shopping experience ever.