Best buy coupon via email

[ryosnk]

I finally got my $5 coupon from best buy (reward zone) but I didn't get it through mail but through email. So I was wondering if I can make multiple copies and used them or is the barcode usable only once?

[DOMINATOR912]

Only once. When you try to print the coupon, the barcode number is activated. When the cashier scans it, the barcode number is permanently de-activated.