Dimi
Keeps track of every bill, renewal and due date, and reminds you before they hit.
Money & bills
Refunds, compensation, bill credits: gets back every cent you're owed.
Gets back the money you're owed: it finds the order, invoice and correspondence in your email, checks the store's return policy, the terms of service and the rights you can claim, and writes a well-argued request: what happened, which rule applies, and what you want. Emails are drafted into your drafts; a store's support form is filled in on your connected computer and shown to you before it's submitted. It keeps track afterwards, reminds you when a deadline passes with no answer, and drafts the chaser or the escalation. It only comes back to you for real decisions, like whether to accept a partial refund.
Add it, then pick one to start its chat with.
Connect these when it asks. It works without them too.