Rude customer service consultants

Last year I took over my husband's payments as he was impacted by loss of income and fell behind in making payments for his TV licence .We were given a discount and I was told what my final payment will be only to find out that the last payment was more .I called in a few times and asked for them to listen to the oridmganal call 7 consultants later this is still not sorted ....my complaint today is that I have never experienced such rude staff they have no way of speaking to a customer ...one of their staff told me So fo you want to pay the R66 or must we go back and add the discount back on your acc ...I asked the last K****tso advised that she will escalate to her team leader Prudance this was last week ....the joke is I'm getting legal threats from them for R66 yet they cant even follow up on the complaint I sent or get their team leaders do do their job properly ....I'm so utterly disgusted in SABc TV TL licence and their staff .....send the lit for training coz they are an embarrassment to you company