Thanks Kath
It was worth complaining, as the issue is now been sorted by Virgin, & a refund issued. Virgin confirmed that there was no hackers involved, fortunately. (there is no 100% confirmation of this).
As to someone else controlling our remote control while visiting us, this never happened, so the question still in our mind remains open.
We are very careful using the remote control, and we have never purchased any so called content for Andrea Brazier or anyone else.
The remote control is only used to change channels, play recorded Freeview TV programs. So the use is classic use of the remote.
Again thank you for taking the time to reply.