NHS Covid Pass Expires in 48 Hours?

[dr_gn]

All, I've just downloaded the NHS app, and got a Covid pass...which expires in 48 hours.

I thought they only lasted 48 hours for a negative PCR or Lateral Flow test?

I've had both jabs - last one May 27th. I got a text instructing me to book a booster, but when I try, it says I can't book one yet.

I thought if you'd had both jabs the pass lasts a month?

Confused. Anyone else had this?

Cheers.