Note: all characters you create are final and if you delete some of them then you will not be able to create new character in the same slot. This is temporarily issue and affecting random accounts, not everyone but still most are affected. Please don't delete characters and use them as they are, if you don't like the names wait until next update fix and you can delete them. We are not fixing this issue if you report it because many, many like hundreds players deleted characters for reason "I choose wrong name".
Thanks
Thanks