Several weeks ago i got an email from VM 'Your device may have a virus', I thought this may be a scam, but a few days later I got a letter with similar content. I have 2 PCs, 2 Laptops and an Android Phone. All have 'free' AVs. I scanned all devices, with no problems reported. I decided to remove all AV software and replace them with F-Secure. Once installed I performed a full scan and again no problems reported.
I have now received another email stating that I have not successful removed the threat or I have been re-infected. I have performed another full scan of all devices with no problems reported.