If it was a larger sum I would prob chase it up, I have recurring payments to Google/Youtube (Mainly YouTube Premium), so not sure why they don't just deduct the balance they owe me from my next payment to them. Guessing with an entity as large as Google, billing is a huge machine in of itself. Just annoying to have a alert in pay.google.com I can't get rid off.
It really depends on which state you live in (you said "bucks" so it's a good guess that you are in the US). Some are surely better than others in this regard. I got about $50 back from Illinois and the paperwork took less than 5 minutes to complete - so we're talking about $625 per hour for my efforts. Definitely worth it. If you only stand to get $3, that would be closer to $36 per hour - still a pretty good return on your time though perhaps not at the top of your list of priorities ;)
