Not sure what you mean by tax-exempt receipt. I’m not a tax guy but my understanding is that a charitable contribution can sometimes be counted as a deduction from income for tax purposes, but it is not exempt. In any event, I think a profuse apology should be offered for the error, and a receipt for the deduction automatically given in all cases.
From the donor’s point of view, I would assume that in the event of an IRS audit, a copy of the canceled check would be ample evidence to prove the donation was made if the charity was non-cooperative about providing a receipt for some reason.
Not sure if anything should be “by right” - maybe my poor wording - just wondering if, among my several questions, a tax receipt for my contribution should have been offered?
Where I am the receipt would be offered at the point of donation, not later - so inclusion or non inclusion in the published list would be irrelevant. In fact, I’d think such a thing could be a tax dodge of some sort if you used that as the basis for claiming tax relief.
And here, you get double relief for donating to registered charities (with a cap of course)