I work for an agency as a home care nurse, they pay for our mileage. Can I still claim for other vehicle expenses such business insurance and parking? No T220 form was provided.

When I called for advice, I was told to enter it at the small business motor vehicle expenses. I was trying to enter it but before you get to that part it asks for the amount you earned from the business, I only have the T4 from my employer. How to I go about with this? Thanks