Paid Character Transfers for both WoW Classic Era and Burning Crusade Classic have been temporarily disabled. We currently expect to have these available again later today.
Thank you for your patience.
Update for May 20 at 2:00am CEST: The issues affecting Paid Character Transfers continue to be investigated and we don’t know when they will be available. Thank you for your continued patience.
Just to confirm, Paid Character Transfers are available in this region again.