Naturally Charles is extremely keen to receive all feedback, especially negative sniping about little inaccuracies that seem to suggest he never actually visited the United States at all. The best way to contact Charles is by carrier pigeon. Simply find a pigeon in your local park, write your comment on an A4 piece of paper and roll it into a tight scroll. Then, tie one end of a piece of string to your scroll, and the other to the pigeon’s leg.
Now, hold the pigeon with both hands and plant your face into the pigeon’s feathers. Then, in a calm voice repeat the following three times: "Deliver this to Charles Firth".
Then, before the pigeon forgets your instructions, launch the pigeon into the air, remembering to let go.
Within 5-8 days you will drop dead of bird flu.
Alternatively, you can email complaints to firstname.lastname@example.org. This email address is, of course, checked regularly.
In the event you have positive feedback, see below.