d577db63_API_Integration_Guide___Zaypay__explanation
[status] paid [explanation] 
The customer has paid. You can give out the product. However very unlikely, it is possible the payment will be charged back. This can occur when customers don't pay their bills, or the payment was made with for instance a stolen phone and the operators or our suppliers contact us about some kind of fraud. Luckily in much more than 99.99% of the cases paid means paid.
API Integration Guide | Zaypay
explanation