BetterMe App Subscription and Payment Issues

This company is just going to take your money and then, when you try to log in, they'll say, "Sorry, you don't have a subscription," even though you definitely do. I reached out to Support, and they claimed it was a different company. I bought the Better Me app from the Apple Store. I've lost money before, so this isn't a new experience for me. Last year, I went ahead and paid for a subscription that lasted a whole year. The same situation happened on my wife's phone.