Disgusted Policy

I wanted to exchange a clothing item at PEP in Clearwater Mall.. unfortunately I misplaced the slip even though the price tag was still in tack. . They totally refused to exchange the item without the slip and yet the item was a factory fault..I did not want a refund but merely an exchange for another clothing item..its the first store I come across who will not exchange or refund without a slip. Other retail stores will offer you a voucher. I'm totally disgusted at this policy and unacceptable..