Well, the answers here are true, and most often you are required to have a registered office address for your
offshore company in order to be able to even register it.
Most offshore
company formation packages include a office address which is used for the company, however, you will need to check if you also get a
virtual office or if this is an additional costs or finally if they even can offer it to you.
To have an office address for your
offshore company which isn't monitored, means, where your mail can't or will be forwarded to you makes really no sense, you never know if something important arrives but never will reach you.