It appears that the best course of action is to submit a petition. If we find out any more info to help we will let you know.
Here are some blue responses on the EU customer service forums.
How to submit:
We may be able to assist you. However, to have it looked into, please submit a ticket with the following information:
- Your original name and realm
- The name of the Arena team you earned the title from
- Your new name and realm, and when you transferred
This only applies to players who lost an already awarded Season 4 Gladiator title after a character transfer.
I'd like to chip in with the procedure the support team is following at the moment to address this issue.
If you were entitled to an Arena title this season, and it either has been lost after transfer or was not awarded at all after transfer, then you should contact us in-game regarding this. We will then pass this onto our technical team for action, and if it is verified that your title loss was due to an unintentional problem then you will be awarded your title as soon as we can run the script to do so.
Please note that if our tech team establish that you are not entitled to a title, that this decision is final, and the Game Master team cannot offer any further assistance.