Spark Post wont allow me to upload fonts

Hi

Im trying to add a font to my brand section on Adobe Spark Post, but it wont allow me stating the font im adding is too big. My font file is .ttf and it's 3.5mb.

Initially it says 'Each font file is limited to 1MB. Please choose a smaller file.'

but it also says it supports files that are under 10MB.

HELP!!!