another possibility?

i got a text today from some employer that i applied for a job to work there a few weeks ago. she asked me if i could come for an interview tomorrow at 10. i told her that i could and i seen that i had scheduled my interview with victoria's secret that afternoon. so at least i SHOULD have time in between to go straight to the next interview if i plan on attending both. i'm not really sure victoria's secret will give me a job partially because i don't have any retail experience and partially because i'm not sure if they'll discriminate against me because i walk with a cane. i know people are probably saying, "WELL THEY CAN'T DO THAT! THAT'S ILLEGAL!" how am i supposed to prove that they discriminated against me for my disability though? most people try not to make it obvious when they're discriminating. plus, i'm pretty sure this other employer may have a better chance at hiring me.