VPDS187000 | Vaping Products Duty and Vaping Duty Stamps: Compliance: Forfeiture
From HM Revenue & Customs · Vaping Products Duty and Vaping Duty Stamps guidance
The following things are liable to forfeiture under section 124 of FA 26:
unstamped vaping product
an invalid duty stamp and any vaping product to which it is affixed
a duty stamp that has not been affixed to any product within 12 months of being issued and has not been either:
affixed to a vaping product and activated
returned the HMRC's approved stamp issuer
An invalid duty stamp is one that has either been altered after it was issued, a false/fake duty stamp or a voided duty stamp.
Where a penalty is being issued , there are additional forfeiture provisions.