You get sucked by seeing them pop up as an alternative means of payment only to realize when you've lost your money that they just want to middle men for a transaction you can easily sort out yourself. So where the shop you're buying from offers free shipping they will charge you for it and take it as theirs, this is on top of other fees they charge normally for their services. And they have a very poor customer service as they do not respond to enquiries, they deserve to be investigated or sued