Squeaky Clutch

Ok this is a difficult decision and i just want to see if its normal.

New heavy duty clutch put in around 9months ago!Clutch has done about 3kmiles and not alot of raping it. When in traffic in town the pressure of the clutch becomes pretty heavy sometimes and becomes really twitchy at the biting point.

also quite often in 1st when pulling away the clutch will squeal if i dont give it alot of Accel. Iv been informed its the pressure plate and its not big enough perhaps and its just the air squealing through. Is this correct or should i be more concerned about it than that?? As been told hefty job as they need to take the clutch out to get to the pressure plate.

Let me know please

Thanks

Munny