Fed up

I don’t even know where to begin. Ever since my upgrade my upgrade in August 2017, I have had endless issues with Vodacom. I did an upgrade and my package came with a Samsung S8+ and a FREE Samsung J5. Every month, Vodacom bills me for the FREE Samsung J5. I go through the whole process of calling the call centre, logging a service request. Then the service request gets closed without any feedback so I have to post on social media to finally get my query resolved. I get my proposed invoice this morning and Vodacom has billed me R508.77 times 2. I want this sorted asap. I called this morning and spoke to a lady by the name of Leshay from customer care but there was a problem with the escalation channel so she could not log the service request and mentioned she will sms the ref number to me once she logs in within a couple of minutes. I want this sorted Vodacom!!! I refuse to let another month go b with an extra debit.