This morning I received 25 coins when I clicked the button on the main page. When I looked at my coins page I noticed that today’s sale is listed as “25 + bonus”. I haven’t previously seen a bonus of zero. Is that supposed to be able to happen? If so, fine. Seems a bit of an odd choice, but I’m not one to look a gift horse in the mouth. But if zero isn’t supposed to be a possible bonus value, there appears to be a problem that I assume our good hosts here at chrono.gg would like to know about.
Bonuses can indeed include 0. You just got unlucky!