Invoice Statuses

• draft - invoice saved as draft. Neither sent to buyer, nor scheduled for mailout
• scheduled - created and waiting to be mailed out on the set date
• unpaid - invoice created, waiting for payment
• pending - payment detected on chain, waiting to be received by CPS
• paid - all confirmation received, payment received by CPS and scheduled for payout
• completed - paid out to merchant
• cancelled - invoice cancelled by merchant
• timedOut - invoice expired
• deleted - invoice deleted