Talking Virus Pop-Up Asking Me To Call 020 3805 0592

For the second time I have had a pop-up warning of a virus and prompting me to call 020 3805 0592.  As I have full AVG cover - including malware protection - I am contacting the community for help.  I noticed Derek Adams had the same problem on 28 Aug 15 and was contacted by AVG Support.  I need the same help.  It last happened about 5 months ago at my previous address. 

Please help. 

Paul.

Hello Paul.
Could you please send us a screenshot of the pop-up and the number being prompted to call?

Thank you.

Hello Paul.
Could you please send us a screenshot of the pop-up and the number being prompted to call?

Thank you.