Tabrillo has zero tolerance for objectionable content or abusive behaviour. Report anything from the screen it appears on, or block the person from theirs — both are one tap and neither requires writing to us first. Reports are answered within 24 hours.
Open the receipt behind it first — it shows every expense, every share and every edit, and it answers most of these on its own. If it does not, send us what it shows.
From the account screen, without asking anyone. Your groups keep their history so other people’s balances still add up, and you appear in them as a deleted account.