Someone else is using my suscription

Hi! A month ago I took my laptop to a service and there the IT guy had copy my suscription of avg. 
Now my subscriptions is finished but I would like to buy again. How can I do to the person who took my serial number doesn't receive the new one? thanks

Hi Karen,

We're glad to help pointing you in the right direction. We do have a specialized team who deals with billing queries.
In this regard, we'd suggest you to initiate a chat with them by visiting this link.
They'll help you to check the available offers & resubscribe AVG. However, upon checking our records, we see that the license isn't used or active on any devices. 
Thank you for your understanding in advance!