Coastal Contacts told me to ignore a bill and now I'm being taken to collections

Being taken to collections for a whopping $34. I think I should just pay it?

Long story short: Coastal contacts sent me glasses. A few weeks later I recieved "custom fees" from fedex for a percentage of my glasses which apparently came from Canada. Called coastal, they told me this was a known issue, to ignore it and that it would be taken care of.

Surprise surprise, just recieved a bill from a collector.

Called coastal, they told me they'd get back to me in two days, about four days ago. Sounds like I should just pay this?