Help finding mastectomy bras in the houston area

I recently paid my aunt (38) to fly out to Houston from Mexico after surviving stage 3 Breast cancer. She was diagnosed with triple negative cancer and she struggled a lot in Mexico to make ends meet after getting a mastectomy. Now that she is visiting I saw her using a crochet breast that looked like a hacky sack in order to look better when going out. I want to get her mastectomy bra but the place I found is not taking fitting appointments at the moment. I need help finding a place that sells them , I’m not familiar to any of this but I really do want to help her before she goes back. Any help will be appreciated