Very bad customer service of Res Toe Run at Robinsons Manila

Just got home from Robinsons Manila and i had a very bad experience with the sales/store attendant at Res Toe Run  shoe store. It was around 8pm, i went to that store to check some shoes because i want to buy a pair as an advance birthday gift for myself. The free fish loafer shoes in green caught my eyes so I asked the male attendant if they have a size 36. His reaction seems masungit but i ignore it. So he got the shoes and just informed me via a loud voice and left the shoes in the chair and assisted the other customer who ask for a fitflop sandals. I didn't mind the way he informed me because i was busy checking out the other shoes in the store.  I tried the shoes if it fits then returned it back. i asked the male attendant for the price and i said "thank you po, balik na lng po ako ulit". I was undecided at that time if i will buy it or not. When i turned my back, i noticed he looked at me so badly and irritated while padabog na binabalik un shoes sa box. My sister in law also noticed his actions. So i looked back at the attendant and he was looking at me na masama ang tingin while babbling some words. I ignore it and we leave the store. The way the male attendant treated  me as a customer is not OK.. Very unrespectful. The message of his actions to me is "bawal mag fit ng shoes if hindi mo bibilhin". How will i know if the shoe fits me or not if i'm not going to try it. The male attendant  should treat the customers fairly and respectfully regardless if the customer will buy some stuffs or not. I hope the management of the Res Toe Run store -Robinsons Manila branch would not tolerate this kind of behavior of their sales attendants/assistants especially this male attendant assigned at around 8pm of Nov. 6,2013.