Damansara Uptown got one called Tingkat Satu Badminton. The boss will only recommend what suits you after doing some fact finding. Not those who just wanna sell expensive rackets.

Just tell him you're a beginner, what style you wanna play and he will recommend some based on your budget and suitability. But if you want to restring, you'll need to leave your racket there for 2-3 days as they have a lot of rackets queueing for restringing.