Sorry about this, but we cannot process artist name change requests at this time. We understand that some stores are currently honoring name change requests, but not all stores are able to process them.
On our end, we cannot send conflicting metadata to multiple stores. Your artist name needs to be consistent across the board in order for stores to accept your work.
You are more than welcome to use the new artist name on any future releases, but any existing releases will need to retain the current artist name.