Giftcard Zen alternatives

I received a prepaid Visa from a company (which I thought was great) as a referral bonus. I thought I used it, but apparently I didn't, so it expired. I never received a notification email or reminder. Giftbit could have reissued it, but chose not to, keeping the funds for themselves and leaving me in a worse position than if I never referred anyone at all. Don't use this company unless you want to piss off your customers and enrich a shady company.