OK, a little update:
My car went into the
garage I bought it from on Tuesday to have the following niggles sorted:
1. Leaking doors leading to wet footwells and poor windscreen clearing etc.
2. Remote central locking key not working.
3. Normal central locking only working from boot, not from doors.
4. Reverse light not working.
I just heard form them (they couldn't get round to it yesterday, too busy or some such rubbish) and this is the feedback so far:
1. They've fitted a drier into the car and will leave it running overnight tonight in order to get rid of all of the moisture before looking at the seals inside the doors and where the leaks are coming from.
They also said that when running a diagnostics check they found my pollen filter was blocked so are trying to source a new one... this would have hindered the windscreen clearing as well.
2. They can't seem to get the remote locking to work as the key isn't responding. Their auto-electrician is looking into this.
3. They did a complete system reset and now all the doors lock and unlock correctly - bizarre!
4. They've fixed this already so that's good.
Now I'm looking forward to them getting all of the sealing done tomorrow and hopefully i can have my car back!