Years ago I had occasional refunds at SS but they seem to have fixed the problem or are * up the costs of fraud. I strongly agree with all who say the retailer or CC need to be the gate keepers here, and not the supplier. After all, that's part of what their gross percentage of the sale is meant to cover!
I just had $40 of refunds at IS yesterday and like the OP, am sooooMAD about it!