After renewing my contract with Vodafone yesterday ( 13 September 2019 ), I received a text message saying that Vodafone had turned on 'Vodafone Secure Net' for free for 3 months, and after that, they would charge me £1 a month for the service.
I had not requested this service and did not want it as I have my own security packages.
I tried turning off the service via the link they sent ( www.vodafone.co.uk/turnoff ) and it failing and trying to turn it off directly from my account, without success, I contacted Vodafone by phone on their 191 (free) contact number.
After I explained that I wanted Vodafone Secure Net removed from my account and that I required an email confirming my instruction, the Vodafone rep' tried to say that it was part of the contract when I renewed!
I wonder if anyone else had this happen when signing up for Vodafone or renewing their contract?.... it might be as well to check your account to make sure you are not being charged for something you didn't want or ask for.