None of the options work without manual backups and/or payment. Users should not have to pay or manually deal with contact list restores because their client has bugged out.
I know one that works though :)
Discussion
Yours has not worked for me in the past. I can't recommend one that I haven't used or one that I have not had success with. Every single one I recommend has worked for me and countless others though.
Well I can’t help you with this supposed issue if you didn’t reach out when it happened.
The correct configuration also requires you have hist.nostr.land in your list which you don’t.
While there is a best-effort attempt at syncing lists it is not guaranteed unless you write directly due to the nature of Nostr.