When joining a Fellowship, get to know your Archmage, they are the highest ranking official in a Fellowship and should be dependable. If they are going to be away for a certain period of time, it is advised they have a back-up that will act as the Archmage in case anything unforeseen happens and they cannot return to the game.
If you have taken all the steps available to you to reach the Archmage without success, you may contact support and the support team will give the options that are available to you. It's easiest if the person contacting support is the highest ranking official under the Archmage that is active. This will speed up the process with our support services.