After surfing around a couple more companies I found CCL Computers sell the exact same model and also advertise it as having 30GB HDD. So I foned them to enquire and they are going to fone acer and see what's going on. There was me thinking it was probably watford's fault when there may have been some misinformation supplied from acer's end. Hopefully things can get corrected and there wont be others ordering something expecting a 30GB HDD when its only 20GB, and ultimately being disappointed. Plot thickens and I shall let you know how thick.