We've had around 10 calls in the last 2 days from people (all from different phone numbers - all fake) claiming to be from Virginmedia saying there are problems with the internet connection & they need to access a laptop to show me the problem. When asked for their name and number so a check with VM can be made they hang up. Same scam as reported in Bracknell in August. Have reported to Action Fraud
This is a common thing and won't be going away any time soon. You did the right thing reporting them, but unfortunately little can be done as the scammers are outside the UK/EU. Stay vigilant. If you put "scam calls" into the above search box, there are other posts on here that can provide further guidance, access to resources and advice.