You can increase the delivery request acceptance rate by adding 'Tips' to the delivery request before you proceed to make payment.
or
2. Add tips to the jobs that have been posted to increase the acceptance rate.
Go to Manage Delivery - Click on the delivery and 'Add Tips', after that proceed to make payment for the tips and the tips will be added to your job. These tips will increase the delivery price and entice the delivery agent to accept your request during peak periods.