On 23 June, the First Bus and Go Cornwall websites announced the new ticket prices that will be taking effect from 2 July, see price changes.
On 27 June, the Transport for Cornwall website published the new prices without explaining that they would not actually take effect until 2 July, e.g. all Cornwall one day ticket £7, all Cornwall one week ticket £25, see TfC website updated.
On 30 June, the Transport for Cornwall website amended the table of prices to take them back to the existing prices, e.g. one day ticket £5, one week £20.
It will be interesting to see if someone changes the price table back again to the new prices in the early hours of Sunday (2 July) morning!
Update
3 July 2023
Monday morning, 3 July, the TfC website has now been updated again with the new, now correct, pricing table. Only a day late, but better late than never.