On 23 June, First Bus and Go Cornwall announced on their websites that the price of bundles of tickets would be increasing from 2 July, see price rises.
At that time, there was no news on the Cornwall Council website or on the Transport for Cornwall website about the increases. Then, late on 27 June, the TfC website was updated with the new price information, but it does not actually say that the prices are going up or when they are going up.
Also, the Cornwall Council Transport News webpage makes no mention of the price rises.
See below the screenshots of the Transport for Cornwall website before and after the changes and see how the message has subtly changed.