Neither the opening or the maintenance of the account have a cost; This is only operational.
The costs regarding the different ways to fund the account are:
International Banking Transfer: USD 10 (plus the costs that intermediary banks could charge)
Argentine Local Bank Transfer: 0.6% of the debit tax + 0.5% of the cost of the transaction (VAT included) + the costs that could be charged by the issuing bank
If you have any doubt please send an e-mail to firstname.lastname@example.org