Pathetic service - Home Connect

We have been clients for 4 years, never missing a paymemt. In November 2023 we moved to another address. On the 7th we contacted Home connect asking to do address change. They swnd forms that I completed and swnd back. Tachs came out and installed the necessary hardware. In December we saw that Home Connect has deducted the months paymemt (R840) AND another amount of about 90% of monthly paymemt(R750 +-). We phoned and they said it is because we changed address, we need to pay for the new address as well, although we already paid for old address. I was upset and told them to refund that extra amount. They refunded me, but with the monthly paymemt as well (+- R1600)meaning that I was now in arrears. January they cut my service and after I paid my January payment,(R840) I also paid a R1000 on the arrears of R1600, meaning I the owed R600. In February we paid our normal monthly paymemt,bit yesterday our seevice was suspended and when we phoned they said we must pay R1500 for the arrears, and then our service will be activated again. But we dont owe that much, we only owe R600. I need them to activate my service immediately and phone me that I can make arrangement to pay the outstanding R600 over two months.