I've just received another call from this number and this time I had a foreign guy saying he was from Virgin Mobile, Ok....
Addresses me by full name, OK
Then asks me for the first line of my address and postcode!
I asked them to ask me a different security questions...
He didn't, I advised him that he is calling me, he said that's why he wasn't asking for my full address.... DUH!
I advised him that by giving him my first line of address and postcode that I would be giving him my full address.
He then said, OK if you don't want to give me your details to have a nice day and hung up.
DODGE BEHAVIOR!
I offered to answer other security questions, I asked him to ask me 3 characters from my account password but didn't take that option.