DP clutch packs

Just wondering if anyone has had any problrms with dp clutch packs? I bought a new one from white bros darlington just before they shut down and when i have fitted the clutch i had an on going problem with clutch drag. The correct oil was used the clutch pack was to correct dimmensions however when bolted up into my clutch pack the fingers only raised to 15mm and they should be between 17-19mm ish. I took the whole lot to al the spanner formerly of white bros, he removed my brand new DP clutch pack and tried in a different make of clutch exact same pack thickness as my new DP one and the finger hieght went straight to 17.5mm ruleing out any other problems with my clutch set up. I have since been onto gas gas motos ltd who supplied white bros they asked me to post my clutch pack back to them which i did they have since had it 2 days with no reply when i call and ask what is happeneing i get put on hold then cut off ( really helpfull)I have left messages with no reply and now im left with a un useable bike due to the fault of a brand new part!

if anyone has had this problem with these parts please let me no so i can tell gas gas motos ltd/ DP clutches and hopefully get the problem resolved