Need help/info

My Satellite Setup
TM1500 ci
80cm dish + dual LNB
My Location
I have the following,
Telestar/Digistar Ci Receiver with an Aston cam which i use to use to watch football films etc a few years ago, i got codes sent to me on a monthly basis to unlock channels on Hotbird and Astra.
I have contacted the person who sold me the receiver etc but he wants a fortune to upgrade the card and to start sending me codes again and i think all he really wants to do is rip me off so i am hoping someone can give me some advise as to what i can do to get the system up and running again.
Many thanks Robo