Aren’t these the folks that spammed every github repo with a spam pull request to integrate their system into your code? I kinda lost all respect for this project and their developers after that incident.
Are you saying you never hired the third party, they went about and did this of their own accord without talking to you first?
At the time we weren't actually making money yet, and most of the contributions to Travis CI came from outside collaborators.
To add to the confusion, we did indeed have a bot in the early days that would comment on pull requests, but only if the repository was using Travis CI already (this has now been replaced by GitHub's status API). However, this was not the same bot account that kept opening unsolicited pull requests on random projects.