Hey — negative balances usually come from offer chargebacks/reversals or a withdrawal/purchase that went through.
Check My Profile → Held Offers / Completed Offers / Withdrawal History for any reversals or held offers (offers over 10,000 coins are auto-held 30 days). If you still can’t find it, open on-site support (support button above chat) and send screenshots — staff can investigate and may refund if appropriate.
