Thank you guys for your support, it proves that they’re are still people out there who care.
Update, had our AA brake down come over this afternoon, tested the entire charging system...I had to persuade him as initially he confirmed that it was just the battery that had depleted and simply needed a recharge...alternator absolutely fine...battery as good as new he reported...and he recommended that we start the car at least once a week for 30 minutes to maintain battery charge...he also recommended that we remove all hardwiring for the dash cam install and install a new 15amp fuse in re.the cig as it may be faulty...he commented that the majority of his call outs for vehicles not starting was due to dash cams wired in that drain the battery.
So that’s what we did...ran the vehicle for 2hrs this afternoon...starts up fine now...pretty powerful infact...and removed all the hard wiring and replaced fuse. So far so good.
However, we have decided to invest in a battery jump starter...we think it’s an investment SO LONG AS IT IS USED CORRECT i.e + to + and - to -, there are some horror vids on YouTube re.such issues.
Decided on this model here, with my sons trade discount I think it comes in at 135.00.
https://www.halfords.com/workshop-tools/garage-equipment/battery-chargers-jump-starters/gb70-2000a-noco-jump-starter