Port Out Rejection - Wrong Address

Hi,
I'm trying to port out my freephoneline number. The external company keeps saying the port out is beign rejected due to freephoneline recieving the wrong address. The only address in my account is my 911 address. Is there a specific address I'm supposed to send to be able to port out, or where can I find the address I have on file?
I'm trying to port out my freephoneline number. The external company keeps saying the port out is beign rejected due to freephoneline recieving the wrong address. The only address in my account is my 911 address. Is there a specific address I'm supposed to send to be able to port out, or where can I find the address I have on file?