cannot change name

Hi there,

My problem is I was unable to change the first name of the Apple ID Summary.

I changed my name at the Apple ID page(https://appleid.apple.com/account/manage).

But the Apple ID Summary>first name remained unchanged at the developer member center(https://developer.apple.com/membercenter/index.action#accountSummary).

I tried several times and found the last name would update as I revised it while the first name wouldn't.