So sorry to hear what you are going through, another vote for C & W, I don't have any experience of the other 2. I was seen at the C & W both on the NHS & privately as I had at least 3 miscarriages that I knew about which resulted in having 3 ERPCs. I also went to Parkside & Concept....
PC World may be able to repair it but the repair will be at least £50 & as the other poster said you can pick one up for less. PC World can also recycle old printers for you if you drop them in.
I too love NVN but the changes to the layout etc have made it much harder to navigate & as a result, I think people may spend much less time on the site that prior to the changes. Doesn't work on an android either.