Kestrel,
If the date in your licence has passed (even by just one day)
you obviously haven't seen an NPPL!
There is no such date in the NPPL! You must either have 6 hours in the last 12 months, or have passed a test with an Examiner in the past 12 months for it to be valid! Then there is the flight with an instructor in the past 2 years to take int account as well!