Yes, you can select Touch 'n Go as your primary method for FavePay.
First, please ensure your Touch 'n Go account is linked to Fave account by following the steps here. Once your Touch 'n Go account is linked to your Fave account, you can go to Fave app > Me tab > My Payment methods > select Touch 'n Go payment option and select “Set as Primary”.
Note: Touch 'n Go can only be linked during your first FavePay payment using Touch 'n Go.