How much does BONKBot charge?

Could you please enlighten me on the matter of BONKBot's pricing? I'm quite curious to know how much it costs to utilize this service. Does BONKBot charge a flat fee, or does the pricing vary depending on usage? If there are different tiers or packages available, could you provide a breakdown of the costs associated with each one? Additionally, are there any hidden fees or ongoing charges that I should be aware of? Your insights would be greatly appreciated.