Nothing to pay here don't worry. I was in contact about that with the support when I had this problem with my own travis account. The concept is that the "free" account isn't really free. When you can proof to be a real free software project then they give you "credits". But not on an automatic level. They give you credits once. When they are gone you have to ask again and again etc. They maybe give you a bit more that you don't have to ask so often. I assume the "bit-team" is connected to Germars own travis account. Hey can ask for more credits or delegate the bit-team to another travis account. I will ask him about that. We established contact with him last week. Until then I would recommend to create PRs against the master of your own backintime fork repo. I do it often the same way. Then my own travis credits are used for the test. But before that you have to create a travsi free account and give them your credit card details (no matter that it is free). Kind Christian