GMB has demanded free staff parking and a flat £1.50 pay rise — equivalent to 13 per cent for the lowest paid — as part of the 2024/25 pay deal for its ambulance and NHS worker members.

Research by the union found NHS trusts trousered £46 million from staff parking in 2022-23.

It is also refusing to engage with the NHS Pay Review Body until it is reformed — questioning the body’s independence from the government — making its claim directly to the Department of Health and Social Care (DHSC).

The claim is the first after more than 13,000 GMB ambulance workers took part in multiple strike days and won an above- inflation pay rise last year.

GMB national secretary Rachel Harrison said: “GMB will not engage with the NHS Pay Review Body process until it has been significantly reformed — with NHS and ambulance workers confident it’s truly independent.”

The DHSC was contacted for comment.