Can court convictions effect but if it not you

Dear People,

I applied provisional Driving licence(Uk) in 2004 and to my surprise i received full Uk driving licence after 3-4 weeks.
I consulted couple of mates and i was told that it was luck so keep it.
Since then i kept the licence along with counter part with 6 point.
When i received counter part in 2004 it showed 6 penalty points CU80.
Now i received a another letter from dvla month ago that i must send my licence back for another court conviction.I did not send the licence and week ago i received another letter from dvla that my D Licence has been revoked.I foned the dvla and explain that i never had any driving convictions and they said if i never had any points or court convictions then i must call to court and appeal against it.
Can you suggest me what to do in this satiation as i am due to apply for Indefinite stay(UK) in 4 months and I heard that HO might reject me due to these convictions.
How can i prove to the court that its not me.
Thanks

Duplicate post.