Hi,
Sorry if I'm being a total beginner here with composer, but just tried using this instead of the "official" billogram-v2-api-php-lib because of how the maintainers of the the official billogram-library responded to issues.
Found out that I had some missing dependencies which weren't automatically included, that I had to dig around in your repo(s) to find. Perhaps this is in alpha/beta-stage and not ment for production?
Best regards