Chancellor’s invitation criticised as ‘strange timing’ with Treasury looking at whether to raise duties on £12bn sector

The chancellor, Rachel Reeves, has been urged to cancel plans to be the guest of honour at an event hosted by the chief lobbyist of the gambling industry while the Treasury is in the midst of a review of taxes on the £12bn sector.

Reeves is slated to appear at a “private reception” for business leaders, organised by the corporate communications company Brunswick, at the forthcoming Labour party conference in Liverpool.