No, we store only the bare minimum to allow us to process payments in SagePay.
HostedPay.net is a product run by 3Bit Solutions, a small software development company based in Auckland, New Zealand. 3Bit have been an authorised Xero development partner for the past six years. 3Bit is also a development partner for SagePay.
We only create a payment in Xero if a payment has been successfully made in SagePay. If you are in doubt, please contact SagePay's technical support.
When one of your customers has successfully paid, we sync the details of the payment back into Xero. It looks like the screenshot below (click to enlarge):
If you don't see the answer for your question send us a message and we will answer you as soon as possible, within a few hours.