Update here:
The majority of users here are seeing this issue due to hitting the wallet linking limit. We have just implemented a new tool for support to handle unlinking wallets from custodial accounts directly and should have this tooling available in the next few days.
We will be reaching out to users here once it is ready and freeing up slots to re-link your wallet. Any users here who are seeing this for reasons other than the wallet unlinking limit will be addressed and handled separately and directly.
We appreciate everyone’s patience here and understanding here.