Hi Natasha, thank you for your message (and to everyone else who I hadn't seen until just now). Here is the update:
- We had taken it to a few local mechanics who generally refused to come anywhere near the gearbox. However, one of our mechanics (after a while of trial-and-error with what could be the problem), 'resetted' the electrics or something like that. I haven't looked at the invoice because my dad was the one who got it repaired, whilst I focused on my other new car purchase to take to work.
The repairs cost a total of £350. Since then (last week), I have been taking my car to work as normal! I used to have some level of trauma with it, fearing it would break down any second....but thankfully - it hasn't! I'm almost 'sold' again in keeping the car - but alas, I have put it up for sale because the 1.0L is just not really fun anymore.
One thing I noticed is that - the LAST time it broke down, I popped the bonnet open to diagnose what could be the problem - and in doing that (perhaps), the permanent sign (when it breaks down) disappeared and the car re-started as it did in the initial temporary break down. So I thought it could be due to the very cold night that day, which cooled the engine down whilst the bonnet was open for about 10 minutes. Hopefully that could come in clutch (pun not intended) in the future if it does happen again. But thank you to everyone else who replied with their advice and technical help and whatnot. It was indeed a VERY stressful thing - especially with Skoda charging over £130 for just a diagnostic, alongside a potential major fix.
@Natasha84 if you are local to Reading, do let me know and our mechanic would take it look at it for free - it may be the exact same problem! But meawhile, I'll see if I can somehow retrieve the invoice for it or find out actually what the mechanic did to it. But my dad told me he spent a good ~5 hours fixing it and charged a discounted fee of around £350 including labour.
I hope that was of any help.
Cheers everyone.