Actually we support Paypal payments.
No we don't offer refunds. You can ask for TRIAL before buy.
Subscriptions are managed directly at Paypal. Please read at https://www.paypal.com/us/smarthelp/article/faq2058 how to manage/cancel subscription.
It can take up to 72 hours to processing Yours links. You can check indexation after 12-24 hours from 100% progress. The final result is after 7 days. At days 3-7 there can be some flow in indexing ratio - it's normal.