Notice and timing
How delinquency is handled
Grace period after the due date
A dedicated this detail was not publicly posted. No current Donna utility-billing page reviewed states the due date, grace period, or delinquency day count.
Late-fee calculation
A dedicated this detail was not publicly posted. No current public Donna source reviewed exposes the 2026 late-fee percentage, flat penalty, returned-payment charge, or escalating delinquency rule.
Disconnection timeline
A dedicated this detail was not publicly posted. No complete current notice-to-disconnection calendar is published in the reviewed Donna materials.