Amount charged to credit card doesn't match cart total

[RixStix]

If you disable taxcloud, does anything change?

[JeffLC]

My ZC was upgraded from v1.3.9 (original install in 2011) to v1.5.4 a few months ago by swguy, so I'm confident it was done correctly.

RixStix - I believe you are on to something. I turned off Taxcloud and both the Better Together deal and the $3.95 discount coupon I mentioned in my earlier post worked correctly (order total and credit card charge match). When I turned Taxcloud back on and processed the exact same transactions, I had the discrepancy between the ZC order total and the amount charged to the credit card.

Now that it appears the source of the problem has been found, is there a simple fix?

[swguy]

There's a bug in their authorizenet_aim integration. A fix is posted on the Taxcloud support thread here:
https://www.zen-cart.com/showthread....95#post1300395