Missing Chars from Classic

[Saneko-ragnaros (Saneko)]

Answered here:

Activate Clone: The shop is temporarily unavailable

Depends from which server your previous toons were on this list: https://eu.forums.blizzard.com/en/wow/t/burning-crusade-classic-realm-consolidation-august-10/362352 Create a level 1 dummy toon to refresh the server list and see if they’ve arrived yet, otehrwise they may be delayed.