Re: Phonce call saying I have 4-5 users of my wifi
As you have identified already, this is a scam. The aim is to convince you to allow the scammers remote access to your device in order to 'fix' the fictitious 'problem' and then gain access to your online banking. Virgin Media would not contact you in this way.
Hang up and do not engage with them. Do not allow them remote access to your devices. Use of a call screening and blocking device or similar phone can stop the calls getting through to your home phone.