Not really an AIBU, more a WWYD?
I've come across rather a strange anomaly. I had £7 in vouchers, in the Tesco Clubcard app, and used them on a purchase. When I got home and checked, the £7 voucher was still on my phone. So, the next time I went to Tesco I used it again. And when I checked it was still on my phone.
The next time I used it again. And it's still on my phone. So hooray, £14 worth of free money! And more to come! In fact, if I ensure my shopping doesn't come to more than £7 a time, I'm getting free groceries from Tesco for life!
But I'm getting rather worried. When you use paper vouchers, that's it, you use them, dispose of them and that's it. But it appears with the voucher on the app, you can use it again and again. Surely that's wrong. Surely Tesco are going to come at me. It's basically fraud isn't it. What should I do? Anyone else come across this?