Hey theogdecoy.
When sending in a support ticket to try to have your crew recovered after a period of inactivity, they usually need the following information to help them possibly retrieve your sailors.
1. Username
2. Server that you played on (I.e. Kaiser/Nebby, or the older servers if its been longer)
3. When was the last time you think you logged in.
4. A rough estimate of what crews you believe you had during that time, it does not need to be exact, (I.e. KM CV crew, or IJN BB crew)
For support tickets like these, it tends to take some time due to the nature of the request.