Why, without any news on the finer detail, are folk so keen to write this off as being more costly to run?
We are chided constantly on this forum about speculating.
There is no speculation about it. Vouchers are accounted for differently to cash, and are treated differently in financial reporting. I won't go into finer details but anyone with any fairly sound knowledge about finance will understand that concept.
More importantly, as someone has already pointed out upthread, cash is a definite financial loss/cost, vouchers are only "speculative" losses/costs. You then have to consider that vouchers encourage some people to make additional journeys which they might not otherwise, and cash don't.
The transition from vouchers to cash, assuming that every other factor remains the same,
will be more expensive, and if it encourages more people to claim, well, you do the sums. There are no ifs and buts about it. The money will have to come from somewhere. Savings on admin in that paper vouchers do not have to be issued is likely to be minimal, even if we consider that the vouchers are completely withdrawn from all uses. There will still need to be a system to issue "credit notes" or cheques and send them out for those people who do not want to provide their bank details. The labour costs of assessing each claim will still be there. You save on postage of the vouchers to many passengers, but increased banking activity will mean additional bank charges...
There is nothing majorly wrong with the current system. All that is needed imo is for Southern's practice of having compensation issued as e-vouchers to be rolled out across all operators, and it would be pretty much a perfect system.
The solution to keeping the cost of delay compensation down is not to make it harder to claim or to make the time thresholds greater. It's to ensure the trains aren't bloody delayed in the first place.
Yes, some delays are unavoidable (suicides, trespass), but the vast majority are for operational reasons.
All very good but not quite so easy on our ageing infrastructure. Things are improving on many fronts, but it will take a generation's investment in the hardware, and possibly longer, to improve matters fundamentally.
Meanwhile my scepticism remains about what this forthcoming change is really about. This is unlikely to be the only thing on the horizon. I'm sorry I am not jumping up and down about it. I would rather look beyond what is on the surface and evaluate deeper issues.