@Chilipadi I'm so sorry! I didn't meant it that way.
They definitely welcome you to walk in (I always ended up with something I wasn't planning on buying whenever I do this haha!). What I meant was, you can call or email if you are planning on heading down only if the item is in stock. Otherwise, bring your mom with you to look look see see hehehe!
I totally get you! I restarted my journey end last year. My only local purchase was in 2008 and last overseas purchase in 2016. So I walked in on a weekday (cos no queue, boutique not busy) and that was how I got to know my current SA at MBS.