Did that not happen? [0] shows an increase of £47bn on the department of health and social care from 2019-2020 and 2020-2021. That's £900m/week. If you compare to post-covid years then it's more like an increase of £28b or £540m/week. From the article linked in your comment, it seems to make a overly large "smoking gun" out of the fact that a referendum campaign website changed their website to reflect the fact that the referendum was now over.
[0] https://www.bma.org.uk/advice-and-support/nhs-delivery-and-w...