I'm usually pretty good at spotting the scams, but I need a little help here.
I saw this review posted for AMANDA.  She has 7 reviews and they looked legit until I started reading all her reviews.  They all seem to be in the same voice (a female voice I'd guess).  Seven different reviewers but most had only 1 or 2 reviews and none more than 3.
The reviews start in April, until June.  So for this to be a scam, it is elaborate.  Of course she wants a deposit.
TER ID: 416630

Welp, it's a hard pass for me!

Sorry,  I didnt remember there was already a thread about this scam.
I saw a new review posted and started looking into her.
I have to say they are putting a lot of effort into this... new accounts, new reviews...
Its hard to imagine they get enough suckers to make it worthwhile.  
There must be more to it.

Probably a lot less work that you're thinking. Pretty easy to automate the account creation and posting reviews. Might seem like a lot for just one provider but if the provider isn't even real (assumption I'll make as I have not looked into this specific case) creating a bunch of ads on some cheap ad site (does listcrawler even charge?) is also pretty simple. They could be running something like this 100 times a month (different mix up the reviewers, different providers...) even 1% hit rate probably makes money. And once it's setup pretty much 0 costs to repeat.