They don't have clear pricing and they try to estimate your business size so they can take as much as they can from you. They will ask the size of the expenses... what does it matter if it's one transaction of $1 million of 5,000 transactions totaling $10K.
It feels like a mini scam to me and I would NOT EXPOSE my finance to them.
They also ask many personal questions before giving you the cost. WHy don't they have a simple cost calculator online?!