Facebook local currency

Facebook local currency

I'm changing a facebook game from using facebook credits to the new user
local currency model. Everything seems ok except the price that shows at
facebook pay dialog. It shows an old price that I had defined before.
After I change the price in the product file, I upload it and re-scraped
at [object debugger][1]
No errors returned and the price array turned out ok. { "amount": 3
"currency": "USD" }
My facebook account has set the payment currency in "EUR". So at the store
the price should be returned in euros by the facebook callback. And it
does, except for the value that comes out wrong in the facebook pay
dialog.
Accordingly to facebook exchange rates the price shoud be 2.29€ (3 US
dollars) instead it returns 1.99€
I don't know where this value is coming from. Do you have any idea?