Bad customer service

with the sale going on at Woolworths i know its crazee however i do expect the proper customer service. i was at the V&A last night got me some items when when i asked if they could check if theyhad stock of the item at the back i was told no.bu tover heard a manager and another customer talking about them keeping her stock at the back.i called this morning to a few stores to find the item am looking for an when calling canal walk the assistance was so rude she left me on hold for over 5min i then hung up.before she put me onhold she told me she can not look for the item as its sale,surely they have staff on the floor that can check for me. why do the staff go out of ther way for certain people,what makes my money different to the rest?and yet i am a loyal customer to the brand..the item and looking for is the cappuccino mug ***6 - it does not have to be that color any colour is fine<br> woolworths is supposed to be the best .. but i ask myself how???