Maybe make the placeholder text on the landing page something like:
123 Main Street
Anytown, US 12345
Instead of 1600 Pennsylvania.
Maybe I just didn't eat my wheaties this morning, but my first thought when seeing the form was that I was somehow supposed to provide the address of the representative I was writing.
That still leaves the ambiguity. The header for "Enter your address" should be larger/emphasized. Changing the example address doesn't make it more obvious if I enter my address or theirs.
E:
Sometimes I wonder why I am downvoted - or if I have a particular unhappy person following my posts. So I'll clarify my reasoning:
A small, easily missed header that is separated from the form is all that tells me to enter my address. Changing the example address doesn't magically fix the UX problem of "my address or the reps?" because the only prompt to enter your address is a small header that doesn't attract my attention that isn't located in the forms' area of attention. Adding a header to the form clears this ambiguity.
Placeholder text shows formatting. Whether it is 1600 Penn Ave or 1234 Example Street doesn't help remove ambiguity of "my address or the reps address?"
Look at their home page. Then look at my image [0]. I hope I'm explaining the problem well enough.
Maybe make the placeholder text on the landing page something like:
123 Main Street Anytown, US 12345
Instead of 1600 Pennsylvania.
Maybe I just didn't eat my wheaties this morning, but my first thought when seeing the form was that I was somehow supposed to provide the address of the representative I was writing.