Having about 60 listed is quite good, though. It’s just bad luck that you are going to use any of them soon, at least Amex are trying.
It seems like they do detect which shops you are using, and try to send you offers for them.
For example, about 9 months ago I bought some stuff from Holland & Barrett. A month later I was browsing the offers tab and spotted them in there. I was going to buy some more stuff anyway, so I used the offer and I got some money off the second time. It could be coincidence, but I think they had picked up that I had shopped with them before, so presented that offer to me.
No Amazon offer for me. The only one I’d use at the moment is the 50% back from Craft Gin Club, but I’m stingy af and thinking why’d I spend £20 on gin (and other bits) when I get gin from Tesco for £16