Before Prism
Keystone ran on a competitor that quietly marked up payment processing 0.6% on top of GoCardless and Stripe. Twelve sites, mid-eight-figure annual GMV, and a finance team that spent the first two weeks of every month reconciling against the bank.
What changed
Cut-over took nine weeks across twelve sites with zero downtime. Prism's published GoCardless and Stripe rates — passthrough, no markup — replaced the competitor's blended rate. Reconciliation became a one-click step.
Where they are now
The 0.6% saving alone outpaced the software fee twice over. Month-end takes finance two days, not two weeks. The board pack now lands on the 5th, not the 25th.