Vodacom Double Charging

I have been struggling since May 2020. Vodacom is charging me for 2 voice contracts. on 25th April 2021 someone from Vodacom phoned me, we changed my voice package and he said he will sort out the issue. This was never done and I am still paying for 2 voice contracts. I was advised to send a letter to the ***** department which was done. An extremely rude lady phoned me asking if I acknowledge I have 2 contracts. Obviously she did not understand the letter I wrote explaining everything. How long will this go on before Vodacom Credit my account.

I cannot believe that in this economic climate we are living in, you are taking my hard earned money with no hassle.