VRS Power steering nightmare

Hi there, glad I found this forum, seems like there are alot of very clued up skoda owners around here, i've recently bought a 53 plate skoda fabia vrs and I absolutely love it, however so far i've had to get tracking done, new wheels, new steering arms and now i've encountered a bit of a nightmare with the power steering.

I've been trying to post in the ask a techie section but it doesn't seem to let me so I thought i'd put this out there on here (sorry if this should be posted elsewhere) . I've also posted in the introduce yourself section!

So my power steering failed a few weeks ago, no warning light came on, it just seemed to dwindle out, a friend of mine suggested it was the steering angle sensor, but the mechanic I took it to plugged it in and then suggested a new alternator, he then discovered this wasn't the case afterwards and had to take it out, he then replaced a wire from the alternator and cleaned all the contacts which has made the steering about 50% lighter however it's still not right and is still stiff to turn.

I purchased a replacement pre-used steering angle sensor and popped it in myself, however this still hasn't solved the problem and the mechanic is now suggesting it may be the pump. I understand these are expensive and this would be a mini-disaster.

I wondered if anybody had any input on this mystery as it is becomign a massive pain in the arse, I love my VRS but am really not loving all these problems :-( .

look forward to hearing any input,

Pete