Where haf the Consumer RIghts Gone to??

Just today, I went out to Sungai Wang and Timesquare in the heart of KL to walk around while both my friends shop... As we were browsing in a couple of stores, a pair of hotpants caught my friends attention... considering its only RM15, its a bargain... anyways, as she approached the sales gal to ask to try it on to see if it fits, to our surprise, the gal told us that we are not allowed to try it on cause its cheap. Well, I asked the gal if it doesn't fit after we bought it, can we exchange it or a different size... and she told me that it's out of the question... I got a bit pissed and told her, if we are not allowed to try the fitting, and not allowed to change if its not the size after the purchase... are we suppose to throw it away ?? Gosh.. Even if its only RM15 or its a bargain... its still a product.. a good... that doesn't strip us off our rights as consumer to buy things that fit us or suite us. Even in Europe, if we purchase something and found out that its not to our fit, we are allowed to have a 100% full refund.. Why not We? Why is there such a case as such happening in Malaysia and no action taken.... Where have the authorities gone to or what have they been doing to protect the rights of its citizen? Consumer Rights? Yeah Right!!