Unauthorised sim swap

Unauthorised data contract sim swap occurred on 15/3. Matter reported to Vodacom and hard block placed on sim card. Matter sent for ***** investigation. Based on call centre staff, sms' are sent to the blocked number. How the *&^% can I respond on those sms as I cannot access anything due to that number being hard blocked. Requested call centre again to change the primary contact number and someone would have responded within 48 hours. Guess what? No one responded as per the previous 4 times. Reference number for that is S3-GQL1E-EICXD. Contacted the call centre again today and the agent has no clue and wants to do a sim swap????? Someone needs to contact me on what is required from my side as one can only speak to the call centre and they are not much help and a waste of time. Dyllan Canterbury, you would have contacted me on 21 March already per your customer care sms. It is 10 days later and I am still waiting.