.ph on the yahoo mail add

Hello,
Since there's no way to remove the .ph in my email add, I tried signing up another account with the same username/ID but why is it un-available or not possible where in fact ***@*** and ***@*** is not of the same domain? Yahoo should let us provide a unique username in login in to yahoo which is different from our yahoo mail id! OR there should be an automatic re-direction of the email to ***@*** from ***@*** if in case the sender forgot to put the .ph! THIS CAUSE ME A LOT OF TROUBLE! TO HELL WITH THAT .PH