A friend was due to be on the EWR-STN on Monday night. Spent hours waiting at EWR for the 'delayed' departure (they could see the outbound hadn't left STN) until it was eventually cancelled. Ground staff provided a hotel but didn't offer rebooking options, so they self-rebooked onto Norwegian next day - only £250ish so very reasonable in the circumstances.
I told her about the 600eur comp today. She had no idea about it, despite the fact she'd been given a letter by Primera setting out EU261 rights, which was sitting on her desk! This is the thing - pax just take crap and don't even read the info when given it!
Anyway I advised to put in her claim asap - because I don't know how long Primera will be around to pay it...