Vouchers from small businesses

Hi there, just a warning to customers who purchase gift vouchers from small businesses. I was given a voucher, with no expiry date on it. When I went to redeem the voucher Ragland in Pietermaritzburg who refused to honour the voucher, stating that the voucher was declined as it was a "special" and the voucher had expired. This was a very embarrassing situation for me as I had requested that Ragland contact me about the voucher. Which the manager felt that this was not important enough to do. Perhaps the small business could have included an expiry date.