So it sounds like my basic procedures are OK then; I do have anti-virus and up to date software.
The only real data I have on the computer is names/emails and records of if they've paid or not. The physical address book has names, phone numbers, and sometimes mobiles; there's also a list of whether they've paid that gets destroyed after it goes on the computer at the end of the year. It's just kept in my house though!
But, and this is the problem, I have no official written consent from anyone that I could keep their name/email/record of payment. It was just assumed, because they contacted me, because that's how lessons of this sort work, that of course I'd keep their detail. Just not written down explicitly. I guess I could design some kind of form for them to sign or click on, and send it to everyone.
I also haven't written down a policy that I keep names/emails etc, because it's so basic! Maybe I can find a template that does that.
But I suppose I still better pay my £35 or whatever to them. Maybe I will email/ring and ask, but I suppose I don't want to draw loads of attention to the problem and risk getting investigated!! I'm sure they're not after little piano teachers who don't make lots of money or similar, but yet it does sound shocking the way the rules/fines are written, applying to absolutely everyone.