Rhys, dunno when you ordered them, or where and how you did it/payed (ie, online, phoned mail order, or went to store in person and paid in store)
If it's either of the first two (ie, not paid instore or in person) then the company is probably covered by the distance selling act, and they can hold onto your money for max 30days from the date you cancel the order legally.
Of course if you went there and paid in person then by LAW they HAVE to refund you on the spot if you go back there in person or if you phone up to cancel, so long as you paid in store yourself (credit card OR cash)