Did you reach out to Billing? This sounds right up their ally. I went ahead and read the policy here:
And while at the top states “If you haven’t used it” Your relevant purchase claims it will undo any changes made upon a refund being made. I will admit the terminology is confusing me as well.
The only exceptions I can think of is if you had your refund privliges revoked due to ToS violations or if you received the race change in a bundle, which would count as you ‘claiming’ the entire bundle and therefore void your return.