Need to pay an invoice of an accident?

Mail a check with a copy of the invoice. Put the invoice number on the "memo" line of the check. Mail it to the address on the invoice. Make sure you keep a copy of the invoice for your own records. Write your check number on your copy of the invoice.

What invoice? Fire departments don't bill. You can make a donation if you like. Never, EVER, mail cash to anyone.

If you are paying online and the money is coming out of your bank account? If yes, that is the proof.

It should say on the check where to send payment, or how to pay online if you can - not all bills allow payment online. If you mail it, mail a check, never mail cash. Does the invoice have a part on the bottom to cut off and mail back with your check?

Shouldn't be too hard to look up a phone number if you'd like to call and confirm. Otherwise, follow Anon's answer; check w/ invoice # written on it plus copy of invoice. Definitely keep records.

I put a picture of it in the post

Never mail cash...period. Send them a check, you can even send it certified if you want proof they received it.

Have you ever paid anything with a check before? Your bank will get it back...and you can have a copy.