Replaced mollie

tests/ShouldShipContent/main.cpp

@@ -62,7 +62,8 @@ void CatalogueContract() {
         // variant, in the same arithmetic the invoice and checkout use:
         // net(retail) - net(supplier) must be exactly 5000 minor. Shipping
         // has its own round-trip guarantee in ShouldComputeMoney, and
-        // Mollie's per-transaction fee is the one accepted deviation.
+        // Payment costs are the one accepted deviation, and on a bank
+        // transfer they are zero.
         for (const auto& [slug, supplier] :
              std::initializer_list<std::pair<std::string_view, std::int64_t>>{
                  { "green", 51330 }, { "black", 51930 }, { "white", 60488 } }) {