It's great to see a new face here in the Community. I hope your day is going well. Let's work together and get a better understanding of how to designate the "End Client" when you bill through a reseller.
To give you the best solution, can you please provide me with some additional information or screenshots about the issue. I want to ensure that I give you the best answer for your business.
In the meantime, you can check out these articles below to give you some more details for the future:
Once I've received the rest of the details, I'll be able to determine the best solution for this question. When you're ready, hit the Reply button at the bottom of this post to respond to me. I'll be waiting for your response!