Expect to be deactivated.
You will get nowhere with the BBB, sorry to say. They don't handle IC claims. If The Source rejected your report, you aren't getting paid.
Years ago there was a MSC who went out of business, owing many shoppers $100s (I was owed $218 and some change). It was Franchise Compliance. They used Sassie, and my shop was accepted and I received a 10 score. The MSC accepted my report and scored it, then told me that they would pay me and didn't. Several people, including myself, filed BBB claims to no avail.
I am happy to say that the BBB is stepping in! I see that they have stepped in with previous complaints with Trend Source and the shoppers ultimately received the payments they were due.
So, the BBB publicly posts complaints from consumers on their websites. There are no recent complaints about Trendsource. The last one published was from March. From what I can see, it was about payments that were issued to people who didn't have their payment methods setup correctly. I am not saying that you are not owed any money, I am just saying that I see nothing there that showed you filed a complaint.