Incorrect billing by Multichoice

ID: ********** 128089 Multichoice ref nr: ********** 6I205

On 1st October 2018 dstv debited my account with R899.00 which was for the month of October. I added two decoders (R99.00 package) and upgraded my premium view decoder. On 1st November 2018 dstv took R3302.70 from my bank account. Their billing is not correct. They only refunded me with R1421.07. I've been phoning for two weeks, they still owe me R784.63. Everytime I call the call centre, I have to speak to someone new, then they tell me they will correct it - nothing happens! I need my money you owe me DSTV!!!!! Please contact me multichoice, you really are not good with reconsiliations . Thanks Lizette Janse Van Vuuren