slmc interview schedule appeal

hi po! i just want to ask if anyone has ever asked to change their interview schedule sa slmc after confirming ? bigla po kase akong nagkaron ng rext from plm today lang that i have an interview schedule on the same day and almost hour as my interview schedule sa st lukes 😭 i dont want to let go po kase any of my chances to both schools kaya lang mahigpit daw po plm sa interview schedule kaya im asking re slmc :(( any info would be appreciated po. thank you