I've purchased parts from this site before and was left very underwhelmed.
I bought a part that comes in pairs (and was advertised as such) and received only a single.
The site owner eventually acknowledged his error and then offered to send me the other half at full price, plus shipping from the US ()
I would not buy from them again, but if you choose to, I'd make sure it's abundantly clear what you are buying before committing (especially given some of the prices!).