MSN LIVE mESSENGER! HELP?

[Kc m]

I deleted sum1 by accident and cnt add them. I keep getting an error saying: You have previously added a contact who uses this instant messaging adress. A contact's instant messaging adress must be unique. How do I add they agian w/o getting this error?
She cant it wont let her.

[Brittany]

i dnt think tht i possible. srry

[evil gnius]

Tell Them To Add You