Shipping Policy
Well this is a stripping policy from policies settings from Store settings so we can write down your but the shipping policy if we have any we define any should be simple and customer friendly thank you
Refund Policy
This is a refund policy under the Store settings for all products so try to check if the refund policy is fine or right thank you
Cancellation / Return / Exchange Policy
This is the cancellation return exchange policy in the store setting page you can set here from the store setting page you can set cancellation return exchange policy and see how everything is working fine hope everything is working fine all the best thank you