PetSmart review: return with receipt

I paid with my reliacard which is child support card and I returned idems with the receipt. To he guy told me that I could not get cash back even though I had paid with my card but it's a reliacard and he told me that I should have my refund that day on my card I checked with reliacard and no refunds have been entered or even added on my card. I really need my refund cause that's my money and I returned the idems.