New tax code and corporate donations through camp cards?

[skeptic]

I am not a CPA and certainly not proficient in Corporate Tax issues. So, perhaps someone can clarify for me if a corporation made a form of donation to charity issuing coupons of some type saving a customer money in their business, how would that have been handled prior to 2018 and how is it handled under the new codes? Our primary hook for our local Scouting "camp card promo" has dropped out, and it will be far more difficult to sell the cards now. I have to wonder if this may be due to the way the corporation is allowed to handle this as a donation to charity? If the withdrawal is directly relevant to their tax issues, it is a negative for charities in general it would seem. Input would be appreciated.