SAPS said that since the PC was handed in willingly, it is not theft. Of course they know what a 2.5" hard disc looks like, this was just an excuse given off the cuff. I am going in there tomorrow with 2 large friends and an attitude
You have two avenues to use.
Tarsus Technologies are HP distributors and should quote for replacement and labour (probably a lot more than the pc nerds down the road) and will be the foundation for a Small Claims Court action.
SAPS are mostly too idle to do the docket paperwork.
On one occasion I phoned General Lamoer after Diep River dragged their heels and the case was transferred to Wynberg as a result.
A combination of these might help produce a satisfactory resolution.
The manager probably has a lot of unhappy customers and should watch out for his car, wherever he parks it.