UPT Question/Violation of Religious Request

I explicitly stated during the hiring process that the ONLY day I am not available to work during the week is Sunday, for religious purposes. I filled out an availability sheet as well that I provided to the TLs. This recent Sunday I was scheduled for a morning shift so I had to call out and use my UPT to cover. I tried talking to TLs but they are not helpful. Is there any way that I can use Workday or another app to get those UPT hours back? I feel like its a clear violation of a religious request, not to mention I’m a part time worker that works usually 3-4 days a week and have not been scheduled for a Sunday in the past so no reason it should be an issue now. Any help is appreciated thanks