Rennwerke Porsche Ltd

This is a highly-regarded shop in the area, so I was unprepared for the long (six month) expensive ($25,000) ordeal my 997 PDK repair turned into. Finally got the car back with outstanding issues I'll need to go elsewhere to resolve. OK, I understand these are complex mechanisms. But I can't excuse being billed for work (replacing the battery, $400+) that was simply never done. I know because I installed the existing battery myself less than a year ago. Now Cheech doesn't even return my calls.