where I accept without question that all of the correct procedures were in fact followed
I wouldn't bet on it. Some of the big retailers have lost employment cases (the one that took the piss with holiday pay springs to mind) Not going to do you any harm to talk to ACAS. Think there is a time limit after the event for taking something to an employment tribunal, though.
I’m thinking of broadening my search beyond the supermarkets too, onto trains for one
there are certainly worse rackets to be in - and (as things currently stand) still comes with a respectable pension scheme. although a few of the train companies are currently trying to get rid of people, and the government have made noises about attacking the pension scheme. which isn't going to go without a fight...
be aware that while train operating franchises come and go (and there are some rumblings about a couple being on the brink of going bust), the front line staff generally just transfer to the new franchise company and get a new set of fancy dress.
with some of the train companies, the 'entry level' is via agencies for platform staff (don't know where you are so can't offer any particular pointers) but this is useful experience when permanent jobs come up.
while some of it is a bit train-spottery, there is a section on
www.railforums.co.uk for job hunting, you may be able to pick up some advice on there.
there can be quite a lot of competition for jobs on the railways as a lot of people who want to be train drivers go for the station based jobs to 'get in the door'
a lot of train companies (and TFL / Underground) do 'competency based' selection / interviews, where they ask you to give an example of a time you did X, so there are probably examples of things you did in retail that would be very valid.
(i do buses rather than trains, but do know a few people in that line of country)
may also be worth thinking about things like airport staff (if you're anywhere near an airport) and for that matter there may well be seasonal customer services jobs at coach stations and so on coming up in a month or two.
by the way have you seen
this thread - do drop in sometime if you want
I was warned that at some point in the future that the jobcentre could (quite rightly) demand repayment of all UC already made
i'm a bit fuzzy on universal credit, but fairly certain this would only be if you had made a false declaration. i think i am still right in saying that with job seekers' version of UC, the first 6 months of entitlement is based solely on your recent years' national insurance contributions. after that (or if you haven't paid enough NI) then it is 'means tested' and having more than a certain amount of ready-ish money to your name would limit or possibly disqualify you from getting anything. if you're claiming housing / council tax benefit, that is means tested from day one. (it used to be that if you had 16K to your name, then you were ruled out of means tested benefits, but I'm a bit out of date with it all.)
if they asked you for proof of 'capital' (i.e. savings etc) then yes you should declare whatever savings account your redundancy pay is in. if they don't then it's not relevant.
that the jobcentre could (at any point in the future) demand the full amount of the redundancy payment of £17,000
I don't believe that for a minute. I think someone has got in a tangle.