Re: *URGENT HELP NEEDED* Clutch problem
Sounds like the original garage did a cowboy job on it - warranty or not, I think if you pay for a service you deserve a decent job.
I'd be knocking their door down demanding some kind of compensation - failing after 4 weeks is just shoddy. If they refuse, threaten them with Trading Standards, and get a report off the new garage about how its failed, and use your receipt from the original work too.
It may take a while which means you may be without your car for a time...