How can I get proof of residence?

I went to SARS to register for a tax number. I was told that I need to bring in a certified copy of my ID, proof of my address, proof of my income and banking details. I am unable to take a proof of address as I dont own the house I stay in.

You can download the CRA001 form and ask the owner of the property to sign it and attach a copy of their utility bill.