They aren't upfront or trustworthy. In my case they I purchased a pre-order (had no idea there was more to come) after the initial check they ask me for more money 42USD along with an email saying I should also check on a third party website if my phone was blacklisted/lost/stolen (why don't they suggest this check beforehand, and why did my 20USD didn't pay for this check) after I decline via email to work with them they responded they could lower the price (another scam alert)... I should've read all the coments from this and other sites before giving that company 20USD for nothing.