The appellant, a registered VAT vendor carrying on business as a bookmaker, overpaid VAT between September 1991 and July 1996 in the total amount of approximately R1.43 million. The overpayment arose because he, in line with prevailing industry practice and the VAT Guide 404, treated winnings received from so-called 'take-back' or 'cover' bets placed with other bookmakers as subject to output tax. At the time, the VAT Act 89 of 1991 did not expressly require such winnings to be included as output tax; this lacuna was later cured by the insertion of s 8(13A) in 1996. Upon discovering the error, the appellant claimed a refund. SARS accepted that a refund was due but limited it to amounts overpaid in the preceding six months on the basis that the overpayments were made in accordance with a practice generally prevailing, as contemplated in s 44(3). The appellant contended that the refund was instead claimable under s 44(1), which would allow recovery over a five-year period.