cold calling...when hell freezes over

So, today I got cold called because "You're due a free upgrade on your mobile phone!"

But I felt I scored a small victory when the bloke calling hung up on me!

Conversation, roughly:

"Hi! I'm calling from whoeverthefuck to check you've received your free upgrade from Orange!"

"Yes."

"...And when did you receive your upgrade!?"

"Four months ago."

"Oh........I think we must be a little behind. Um...And which phone model did you get?!"

"It's a phone, it lets me call people, I really couldn't give a shit what it's called. Why do you want to know?"

"click brrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr"