Berdeaux Pizza

This person asked if he could redeem a coupon for a free pizzaI asked what the coupon looked like and and he became hostileThis person asked who I was and I told himI asked who he was and he replied "none of your [redacted] Business." When he became hostile I simply hung up the phoneHe called back to threaten me so I hung up without saying anything There is a coupon on the box that is a proof of purchase couponThere is not now, nor has there ever been a promotion to redeem of those for a free pizzaWe have a repeat customer card that offers a customer the option of a free pizza or a T-Shirt after the purchase of pizzas

This person asked if he could redeem a coupon for a free pizza. I asked what the coupon looked like and and he became hostile. This person asked who I was and I told him. I asked who he was and he replied "none of your [redacted] Business." When he became hostile I simply hung up the phone. He...

called back to threaten me so I hung up without saying anything.
There is a coupon on the box that is a proof of purchase coupon. There is not now, nor has there ever been a promotion to redeem 10 of those for a free pizza. We have a repeat customer card that offers a customer the option of a free pizza or a T-Shirt after the purchase of 10 pizzas.