SABC TV license *******!

I am being harassed about my TV license, last year I paid it in full, this year when I logged on to pay it was close to R800. I paid the R275 in 2 installments and refuse to pay more, you are *******!! How on earth does my TV license get to R800? This is *******!! I paid what the annual fee is and you won’t get a cent more from me!