Why has my review not been processed after several months?

I left a review for a certain TV show several months ago and was advised it had been received and was being processed as normal, but since then it has been radio silence. Why has this taken so long? I have not received any emails or other notifications to advise that it had been refused, so I would like to know just what is going on.

The review was largely negative but met all standards of decorum and was appropriately marked for spoilers, so this is rather suspicious for that reason alone.