UNFAIR AND ********* - TV license collection by REVCO

I received an SMS on the 7 January 2020 to say that my TV license is due by the 12/11/2020, so I did not rush to pay it. I have paid my TV license every year since I have lived in South Africa. I then get a message from a collections agency called REVCO - Revenue Consulting last week stating that I have been handed over to them and I now owe them R424 instead of the R291.50. I immediately tried to get hold of them which is a joke as you leave your number and no one gets back to you. Eventually I sent them an email with the SMS attached from January. They respond to me by saying that "Please note that should your account not be settled on or before the 30th June 2020 a penalty fee of R26.50 will be charged monthly until the balance is settled." I emailed them back saying I am not liable for this R132.50 as it was the SABC error in their SMS and not me not paying my account on time. I immediately paid the R291.50 which was the TV license amount and send them the POP. I then get a response of "We acknowledge your below email and proof of payment, however, please note that should the balance of R132.50 not be settled by no later than tomorrow, 30th June 2020 the balance will accumulate legal fees and administration fee until the balance is settled." This is COMPLETELY ********* and unfair. It just shows why our government parastatals are in the state that they are in.