Yes. You can decline an offer before accepting it in the Spinr Driver app. If you have accepted but cannot complete the pickup, use the cancellation option before the trip starts and choose the accurate reason. Once a trip has started, end it through the trip-completion process rather than cancelling it.
Acceptance rate reflects your responses to offers, with recent responses carrying more weight. Accepting, declining or leaving offers unanswered can change this score, and a lower score can reduce your priority for future offers. It is separate from your rider rating and completed-trip count.
Always follow Spinr's safety and non-discrimination rules. A rider's disability or service animal is not a valid reason to refuse service.