stupid optus

my mobile is ringing.
'hello, is ts carly?'
'yes'
'this is optus mobile calling, and since you have been so loyal in staying with us for your mobile phone calls, we would like to reward you with an extra $5 credit on your mobile bill'
'ok'
'all you have to do is try optus for your home phone...you're with telstra, i gather?'
'...no...im already with optus'
'..........oh........well, ok then.......bye'

we hang up

shouldnt that be something they know? shouldnt they have that up on my screen when they look up my info to get my number?

people are stupid