As someone alluded to, if they're a big name you can point to / use their logo this could easily pay for itself. If you think of their discount instead as an a

As someone alluded to, if they're a big name you can point to / use their logo this could easily pay for itself. If you think of their discount instead as an approximately $500/month marketing budget, would you do it? (Or even more precisely $350/month as that's the additional request). Just try to avoid the slippery slope of giving everyone such a discount (and I hope your pricing plans mean that this presumably large customer is getting a discount on an expensive "Enterprise" plan that's only sensible for larger groups).