Not valid

When we came back from London I used my "free" gold card ticket. The problem was that the paper record I had was the old one, the new one hadn't yet arrived in the post and though I did have a valid gold card it's all electronic and the staff struggle to read them. The good news is that they only did a cursory check of our tickets so I didn't have to explain it all to them... Now we are back home I've taken this one out of service and put the new one in my wallet.