Sorry! You are unauthorized to view BT Yahoo! Member Center
I have been trying to log into 'Yahoo! Address / Contact Information' under the 'Change Personal Information' section of my BT Yahoo! account but when I try to log on, after being asked to type in my password MANY times, I eventually get the message "Sorry! You are unauthorized to view BT Yahoo! Member Center". Why is this?
I am also trying to change the nickname that appears on the Yahoo! forum pages (formerly changeable through Yahoo! Profile) as someone has SOMEHOW managed to change theirs to be the same as my very unique one and is now impersonating me!!
Any help on these two (possibly related) matters would be greatly appreciated.