I suggest you buy it from online sources, eg. ebay. It could be fairly cheap even with postage.

I have bought a few online. No problem.

So far I have bought a few things on this pureview, namely the plastic case (the case house the circuitory board and the lens, not third party protective casing), its speakers (two in total), bought 1020 glass screen to replace my broken 1020 screen and a few protective casing for some of my handphones. None of them were taxed. If any of the item really cost more than RM500, I think its no longer worth replacement. Since the actual value of the phone will cost much less.