Anybody else suffered this account update request?

Am I the only one that finds the link given on the account management page leads to a "Page not found" notice??

This is the suspect link, copied and pasted from the Account Management page which suggests:-

"To access this site in future, go to:-" https://www.sonyentertainmentnetwork.com/account.

Tried to find a "Contact us" link on several Sony pages, there are none...it seems they don't want us to bother them!