Hello I submitted my tax return and it said that I was due a refund of about R800. I then went through my medical expenses and saw I made a mistake in my calculations. So I went and corrected it (originally my medical expenses out of pocket was R8900, after I corrected it it was about R8200). Now it says I owe them about R200! I do not earn enough to do e-filing in the first place, I submit because of my medical expenses. Please help?!