votafone calling to change my plain, I don't care honestly... Sick of them asking.

Caller: Vodafone

This is actually a Vodafone call centre, however I believe that what they are doing is wrong and counter to any reasonable security expectations, because you have no way of knowing it is Vodafone, and they ask you to provide your PIN number before they will speak with you. And they "you're speaking to Vodafone" text can be easily spoofed.
So, the reality is that they are teaching their customers to be hackable - because if I was a scammer, I know to call Vodafone customers and ask for their PIN, and they've been taught to tell me it. Shocking security strategy by Vodafone, and likely puts them at legal risk if customers are scammed in the future using the same technique!

Sounded like a scammer, said he was from Vodafone and that he wanted to let me know about the new plans available and changes to my account. He also requested my PIN number.

it kept asking me for my vodafone PIN. I said I couldn't remember and the person asked me to guess it three times.

Caller: Scammer

Person from Vodafone claiming to have a new plan for me and everyone on my data plan. High pitched noise at the beginning- which obviously I knew was an auto message- and then some guy asked for my pin.

Supposedly Vodafone. I answered the phone to silence, then there was a strange sound as if connecting, the caller asked if I was on the line. I had to say hello again. Caller had a thick Indian accent, said they were Vodfone and directly asked for my pin so they could tell me the latest offers. I replied I would look them up online. Caller virtually demanded my pin. I said no thank you I'll look the offers up online.
IF this IS Vodafone, they need a better approach.

Caller: This number calls me sayin its vodafone

They want your PIN number they scammers and do not sound professional at all SCAM for dure

Got a call from this number just now from a call centre saying it is Vodafone. If it is Vodafone I will never agree to any up selling, plan change etc over the phone. If I want something I will make contact. Stop these rubbish calls.

No one on the other end when I've answered the call.

High pitched beeping at start of call. Claimed to be from Vodafone but was vague about reason for call and immediately asked for my PIN. I hung up.

Caller: Vodafone

https://www.vodafone.com.au/support/contact/customer-care Defs Vodafone. I did the online chat thing with them to confirm they had called me. That link has a list of numbers they can call you from. Seems like it's not a great way to contact customers, weird noise on answer and first thing they want is your PIN.

Call vodafone and ask

Didn't answer

Funny sound when I picked up. I assume it's a phishing call. Blocked the number

He said he is from vodaphone and giving me a plan and asking for my pin.

Said they were Vodafone wanting to offer deals