From single-PSP fatigue to multi-rail confidence
The problem: Sat at 92.1% auth on Stripe-only across 12 EU countries. Italy and Spain expansion pulled the rate down further, with no visibility into which BIN ranges were failing where.
Whaliepay solution: Routed primarily through Stripe in FR/UK, Adyen in IT/ES, Mollie for SEPA. BIN-level fallback to Checkout.com on a 0.4% segment.
"The cheque cleared in week two. We moved from arguing with one PSP about IT BINs to watching our auth rate climb every day." Mira Vasel · Payments lead · Halcyon