if you're shopping on e-bay try these places for decent quality on pre styled wigs:
selection is always more limited on e-bay sites compared to the corresponding taobao ones or their usual websites. Also if you need faster shipping times shop at US sellers like epiccosplay.com, arda wigs, the fivewits wigs. They usually have something you can use if you want to do a bit more of the styling yourself.
I know maylene is a common enough colour to come by in a base wig with clips, you just have to find a style with long side bangs and be able to layer and flip up the twintails a bit for her slightly messy style.
if you're really stuck and want to just throw money at something prestyled gothicloitawigs.com is ok too, I know they have a lot of twintail options but nothing specifically for her char.