Extra Retainers question

[Ronyx]

In the patch notes says:

Additional retainers can be purchased via Optional Services.
Players may purchase up to two additional retainers. The purchase of an additional retainer will apply to all characters on a single account. However, a single retainer cannot be shared between characters on a single service account.

What exactly this means?
That no retainers can bet shared between characters?
or that they will allow retainers share except for a single retainer?
I guess something is odd. It must had lost some meaning in the translation from japanese.

[tymora]

Each character will get the use of additional retainers but the retainer is unique to each character. i.e. You can't transfer items between characters using the extra retainer.