Hired our first person abroad and the fees quietly doubled what I thought we were paying (i will not promote)

We're a small SaaS startup, about 6 of us, and we made our first hire outside the country this spring, one engineer in Spain. I went in thinking the EOR fee was the flat number on the quote, and I was way off. The headline was something like 500 a month per employee, fine. Then there was a setup fee, then a deposit equal to a month of salary held for the whole contract, then an FX margin on every payroll run that nobody itemised, and a notice clause that meant offboarding wasn't going to be clean or cheap e