Why is TAAT is expensive in U.K. Perhaps this will help....
8.1 Definitions and notes
‘Tobacco products’ means any of the
products listed which are manufactured wholly or partly from tobacco or any substance used as a substitute for tobacco but does not include herbal smoking products.
‘Herbal smoking products’ means products commonly known as herbal cigarettes or herbal smoking mixtures. They do not include plant material which is specially grown or processed for use as a tobacco substitute
Herbal material is usually readily identifiable as such by its texture and aromatic and pungent odour.
https://www.gov.uk/government/publications/uk-trade-tariff-excise-duties-reliefs-drawbacks-and-allowances/uk-trade-tariff-excise-duties-reliefs-drawbacks-and-allowances#tobacco-products
So has TAAT been classified as an herbal product or tobacco substitute/replacement......ASK TAAT MANAGEMENT