Quite apart from the courtesy (and the OP apparently feels like he hasn’t been treated with courtesy himself), this seems like an obvious case for communicating to an organisation that you’re upset because you feel that you’ve been misled about timelines [and are considering publicising your complaint] before going public because, despite the delays, they may actually be quite close to awarding you significant sums of money...
(I’m not sure what was promised, but this sounds like exactly the sort of thing I’d expect to always take longer than expected)
Quite apart from the courtesy (and the OP apparently feels like he hasn’t been treated with courtesy himself), this seems like an obvious case for communicating to an organisation that you’re upset because you feel that you’ve been misled about timelines [and are considering publicising your complaint] before going public because, despite the delays, they may actually be quite close to awarding you significant sums of money...
(I’m not sure what was promised, but this sounds like exactly the sort of thing I’d expect to always take longer than expected)