Water leak

[Decked]

I have discussed this before, my R had considerable condensation after a few weeks of bad weather. It started to get worse and I felt the floor mats in the back, and found that they were saturated. The car went into the dealer on the 31st of January and I still haven't had it back. They firstly tried to blame the amp lead running from the battery to the amps in the boot. But they water tested to car again and since then they have found another 7, yes SEVEN leaks. I find this very hard to believe. I've asked whether this is normal and they have stated they have never experienced this problem before, well in that case there must be something wrong with the car, they state that it's fine, or they can't comment on that. The leaks have apparently come from, the windscreen, the door hinge, the bulk head???? and a few other places they haven't told me about. The problem is, they are now using a new sealer, that aparently work better, (why didn't they use this before) so I'm not going to be getting the car back for another 2-3 days. Has anyone had any kinds of problems like this? And any suggestions on what I can do. Help please!!!!