Wanelo isn't to blame for that, really. They just make it so that a lot of different stores are on one website for you to look at. When you purchase something, it's through a different store. I wouldn't blame Wanelo, I'd blame the seller/store.
honestly just read the reviews on the particular items you want. some of them are definitely iffy but others aren't. i've ordered from there a couple time, it took awhile to get my stuff but i did get it. i think there's an option to pay through pay pal through the online store now i'm not sure though.