3.—(1) This regulation shall apply to any payment in respect of tax or interest or penalties to Revenue Scotland where—
(a)internet authorisation is given for a person to make a payment by credit card; and
(b)that person makes the payment to Revenue Scotland or a person authorised by Revenue Scotland.
(2) Where paragraph 1(1) applies, the person must also pay a fee of 1.4% of the amount of that payment.
(3) The fee must be paid by being added to the payment (so that, accordingly, the person must make a single overall payment, consisting of the payment and the fee).