Two things: please don't do this without explicit permission from an appropriately authorized employee (probably different from your contact). Also, personally

Two things: please don't do this without explicit permission from an appropriately authorized employee (probably different from your contact). Also, personally, every time I see this my main reaction is "OK, one small team used a credit card to buy this service, its not as if all xx,xxx employees of $bigcorp are relying on the platform for daily LOB activity"