Once you are happy with your Print Preview click the Print Icon.
NOTE:
You can see at the bottom of the report, the HMRC validation details, these include;
Processing Date, Payment Via Notification,
Form Bundle No, Charge Ref Number
Not all fields are returned by the HMRC live servers, the important two are the Processing Date & Form Bundle No.
Having those two pieces of information mean you can be sure that the HMRC have you Vat Return.