What's funny is that in the last 5 years or so, when I have called my credit card companies to tell them I am traveling and will make large purchases, they tell me that they don't need to know that anymore. So, extremely large purchases in Africa, no problem. But, try to buy a couple things online in the US on the same day, card gets blocked
I am unsure if Frontier has no fee for all cards or just Cabela's cards, because they have very close relationships with Cabela's/WTA. So it might be worth double checking for a person looking to use another credit card there before going.
That said, a lot still comes down to the specific card or payment method you're using. Some systems work great in one context and then randomly fail in another. One of my other hobbies is online casinos, and over time I’ve found myself mostly sticking to Polish platforms. I don’t know exactly why. Maybe it’s the layout, the language, or just the way the games are structured, but they feel a bit more intuitive and comfortable to me. When it comes to payments there, things can really vary depending on the site. One method I see more and more is Klarna. It’s become quite popular on many Polish casino platforms, probably because it’s simple and gives players a bit more flexibility. If anyone’s interested, I can recommend checking out
https://plkasynaonline.com/platnosci/klarna/, which includes reviews of Polish online casinos that support Klarna. What I found useful is that it doesn’t just list the casino sites but also provides helpful context about the Klarna payment experience on each platform, including how smooth the transactions are, what limits or restrictions apply, and other practical details. If you're into comparing how different systems work, it's a decent reference point. Just like with outfitters or international travel, knowing how your payment method behaves in advance can save you a lot of hassle. Sometimes the issue isn’t the card itself but how it’s handled by the system on the other end, and that’s definitely true for both casinos and safari bookings.