Had a look and tried the credit card thingo, I knew something was blocking it, and it appeared like a whole lot of dirt because I eventually got it to pull all the way down, and tried cleaning a bit more, but then when i pulled all the way back up (with a lot of effort, it got stuck at one stage haha) i noticed a huge line of dust/dirt along the middle.. so I'm assuming that perhaps from the last time I washed the car a whole heap of dirt may have washed down that side and dried up. Question is.. how do I reverse this process..
I'll try washing the car again and try get a teensy bit of water in to loosen things up, maybe that'll help a bit.
I'll post again for progress haha