Refund on my Paypal Account

It looks like my Paypal Account has been debited $79.99 without my authorisation per invoice ID Invoice ID: ************  and Transaction ID  as below.  Please reverse this - thankyou. Looks like an AVG trial subscription?  Regards Colin Tasker. 
(Transaction details removed)
Hi Colin,

It is not advisable to post subscription details here. Reason being, privacy concern.
We have sent an email with further details. Please check your inbox/spam for the email.
Hi Colin,

It is not advisable to post subscription details here. Reason being, privacy concern.
We have sent an email with further details. Please check your inbox/spam for the email.