They don't tell you which accounts they are going to work into (Since logging into your account is part of their delivery method)
For example, Sky***ch Pros (censored to avoid advertisement) advise you when they are working on your account by messaging you, here you pay them (in which they will do their best to get your money, you won't wait more than 10 minutes for a reply) after you paid, get ready to wait for ages, on their book, they already F**** YOU, when they will feel comfortable, they will ask you for your credentials, to then be left in the limbo.
OH AND IF U TRY AND ASK A QUESTION about your order, they will delay your order for days, call u stupid or slow, in my case I had to contact them after waiting for weeks, while they kept processing little orders in order to get people hooked into paying more.