Cash back is only offered on new users and not on existing customers. No cash back is offered on ANY coupon/promo code. Order must be placed from a new session; if a existing, non-expired session is running (e.g. you visited Instacart directly or from another channel before transacting through AJ) the order will not track and is not eligible for cash back. Instacart does not support Missing Cash Back Inquiries therefore if the order does not track successfully no cash back will be awarded.