I just wasted hours trying to redeem points from a credit card I've had for over 20 years. The bank that originally issued it is long gone, changed hands 5 times or so in 40 years.
I had a shit-ton of credit card points, and the points aggregator is still in business. I tried to log in and finally gave up after a couple hours and surprise: A human being answered. I told her of my problem and she asked me the normal security questions and it turns out, that since my bank closed, purchased by a larger conglomerate, my points no longer exist.
35+ years of points. Gone. Poof. Never redeemed a one, never had a chance.
This was a commercial (farm) card. Millions in expenditures accruing points. Gone. Who got them?