Regardless of the payment method you choose for settling the remaining balance, the deposit payment for your fishing trip needs to be paid via credit card. When settling the deposit with FishingBooker, there are absolutely no additional credit card fees.
If you choose to pay the remaining balance with your credit card as well (in case that the Captain selected Credit Card as a viable payment method), there may be a small surcharge associated with the credit card payment, depending on that country's tax laws and the Captain's own credit card policy.
FishingBooker has no influence on this matter but we'll keep you informed. The main reason why some Captains charge an additional credit card fee are the transaction fees which they need to pay to their banks in return.
We are constantly updating our captains' payment policies and will keep you up to date regarding any and all additional costs.