Uber eats with rental car? Have non-owner car insurance but rental car isnt listed on policy. UE saying I need to get insurance from rental place but can’t afford rental insurance. Anyway around this?

Main car needs repairs. Have been renting a car for last few weeks. Have a non-owner driver policy which shows my name but no car is listed.

Today was prompted to upload new insurance since last one just expired and when speaking with support they keep saying I need to call the rental place and ask them to provide insurance with my name on it but that would mean I would need to pay for the insurance they offer which is pricey. Renting through budget. Anyway around this?