Redsys Payment

Hi we bought the pro version of the plugin, everything work fines until the customer finish the purchuse, then when woocomerce redirect the customer to redsys (to put the card number and do the transaction) the redsys platform recive the quantity like and (double) and ignores the currency, so for example if i buy somthing which is 30$ the bank transform it to 30€ and becouse is a discrepancy it doesnt finish the transaction.