I did find an email from Cloudflare in April 2011 (seven months after CF started to offer services) which was a response to a support request. I guess that things have changed in the intervening years so that the original link to keep track of my support request no longer works!!
I'll give them a break on this!
I actually do have a support case history with them, and I’d like to review what data has been lost. I’ve been a customer for over a decade. I have no clue what was in that history because I’ve filed numerous tickets over the years. They have made that impossible without paying them, even if you’ve paid them in the past.
They clearly failed to test their process on each account type.
I guess we could send individual data subject requests to their DPO, but that is probably more costly for them.