I’ve had 30 BAT of tips to non-verified users disappear after 90 days. They were in the list to expire on the 29-Mar-2021. They are gone from the list of pending contributions, but the BAT hasn’t come back into my wallet.
I’ve worked it out: my pending contributions haven’t been deducted from my wallet. Rather they are sat in the browser ready to be paid out if/when the recipient verifies themselves.