someone from Vodafone could hardly understand what he was saying

I think they are a scam as they hung up on me when I asked them a question.
Though they appeared to ring from vodafone they did not know I was a customer of theirs.

Caller: (03) 9069 5865

when asked for the address they said collins street but when I said where in collins they hanged up on me

Rang up, answered and no response.
Weirdi

seams to be a robocall... computer calling numbers to see if it gets a response/pickup. once we pickup, our number is marked as active and gets sent to an illegal call center

They call and hang up very annoying

Said they were from Vodafone but did not know I was already with vodafone. Asked if my contract had expired and I said you should know that. Told him to waste someone else's time. Certain there is some scam

No one replied, it looks like they are calling multiple numbers at the same time.
Very rude!

No one answered so caller blocked

They hung up after I said hello twice to them, it's not the first time they have rang and done the same thing.

No one talked on the other end then they hung up

Caller: Vodafone

Vodafone telemarketer trying to port to their plans. Asked how much I was paying, said $10/month currently with Belong, he couldn't match it

No one answered so I hung up.

no one replied when i picked up and they hung up

Hung up when I answered.