Will V media know if I call them about V+ box

[welshcake]

When I first had my v+ sub I had the card copied etc and fitted a 50db to the back, For a few months now I removed and destroyed the copied card and replaced my orginal card in the box and removed the 50db also and have been quite happy with the basic channels I have been getting, I now have a problem with my record service when I press record it says I am not subscried to V+ and call 150, If they send an engineer out is their anyway of them knowing I had the card copied ages ago or is this a common fault?

I know I should never have touched my subbed box but did not know at the time until I came on here which is why I got rid of copied card and replaced my original.