Rules for forced rename.

Q u o t e:
Unless he is purposely trying to impersonate as you or is using the name to harass you I don't think there is anything you can do.

Correct. If the person is simply acting on their own and you are being mistaken for them I'm afraid there is little we can do.

When you select a name from a most notable playwright, that is unfortunately a risk. Good luck to you, Lysandër.

Swift as a shadow, short as any dream;
Brief as the lightning in the collied night.