I see, makes sense that they take a cut now. Nobody I've asked so far will let me use a voucher with a discount, or apply a fee (usually the discount) to the purchase.
My employer have confirmed I can top it up so non issue there.
This one is a good example of what I'm on about:
https://www.leisurewheels.co.uk/m12b123s147p16333/CUBE-Reaction-Hybrid-HPA-SL-500-2017
..it's cheaper than the 2018 Race version with the voucher scheme. Componentry seems better but are there other differences that I'm not seeing.
Cheers!