Back at work today - so not been online
The OU is a really good suggestion, thanks will look into as another option, although they don't do exactly same course, there are other allied things which may be a better long term option, especially if he can get a higher ultimate grade
Not sure transferring to another university would be an option due to cost, as would not be considered as a continuation so would be higher fees, and unsure of how much student finance he would be eligible for. I was promoted at work last year and previously he got maximum grant, bursaries etc
Thanks for everyone's help though you've been great! People at work today have been very understanding, some have met my son, when he did some voluntary admin/PR for the charity I work for. Looking into more of same, temp/part time jobs in the sector, as well as internships. My boss even found some e learning courses which would help fill out his CV and she could access cheaply through our organisation
If there is a reason for his sudden drop off, it's not become apparent yet, I suspect it's more likely a combination of a few things, including resting on his laurels slightly.
I know at his stage in life, I was running out of steam within the education system, and wished I'd taken a gap year or two, so it could be that.