This is an action by the plaintiffs as taxpayers for the recovery of income tax payments made in the calendar year 1964. Plaintiffs contend that the amount of $836.51 was erroneously overpaid by them in 1964, and that they are entitled to a refund in that amount, together with the statutory interest from October 13, 1965, the date which they made their claim upon the Internal Revenue Service for the refund.
was erroneously overpaid