MULTIPLE EMPLOYERS for TD1 / TD1ON + TD1 Amounts Changed

Hi,

I'm looking for some advice on filling out a SECOND TD1 form and a TDON1 form (Multiple employers)

I've previously filled out a TD1 form for 2022 with my first employer - but this did not have the tuition fees included as I wasn't enrolled in school at that time. Being said, the " More than one employer at the same time" tab instructs me not to claim again, however, my previous claim amount is technically wrong as I know have tuition fees to add.

Additionally, my first employer is a BC company - that I work remotely for -  and I previously filled out a TDBC1, does this mean I cannot fill out the TDON1 and should also follow the instruction under " More than one employer at the same time"

Thanks for your help!