Only rang twice then hung up, did not leave any message, phone showing as spam, scam call

Offer 40% off from current Vodafone bill for 6 months. Asking for 4 digits security pin to activate the deal. I said I don’t remember my pin so the scam told me to call 1555 to check my pin and she will call me back in 10 mins to get the pin…..normally I would hung up after their too good to be true deal but I’m free today so I spent time a bit to see how do they try to get info from ppl

No messages left. Called after hours

Caller: 0480 029 050

“Wonderful News from Vodafone” I blocked This number.

Caller: 0480 029 050

Called twice and when I answered it was silent. Blocked.

Received call from 0480 029 050 didn't answer

Scam call 0480 029 050. Put my phone on Airplane Mode and blocked!!

Caller: 0480 029 050

Called twice no message left

said they were from vodafone when i rang back the next day said it was a baptist church