Medical tax credits?

I am aged 70 retired but working again,, earn less than R11K a month, pay my own medical aid for myself and spouse. . Have no company perks. . Have always got my full paye refunded to me each year. However. I do not understand how the medical credit will affect the situation as from this year? I do not have the tax deduction of R257 for myself and the same amount for my wife as I pay our contributions by debit order each month. Would I still be refunded by SARS, or how does the medical tax credits (for over 65 from this year on work in my case?)

Please read our blog on Medical Tax Credits for a better understanding and you can make use of our Medical Tax Credits Calculator to work out what your actual credit will be against any tax.