CELL PHONE LOCKED UNFAIRLY

This is the complaint that I sent to Vodacom Customer Care, I need them to unlock my cell phone & refund the difference of the money that is due to me:<br> <br> Reference Number: 002V~VFT4 (I got this from Vodacom as Ref no. yesterday)<br> <br> Vodacom violated the contract as they overcharged me when the agreement I made with you was for R399.00 on a Samsung Note 10.1, with 2G per months for 24 months. I received an SMS on 06/01/2015 confirming that my migration to Top Up Data package has been completed successfully.<br> <br> 1. On the 20th of January 2015, I was overcharged by Vodacom, R250.00 was debited instead of R99.00 for My Gig 2 Contract. A total amount charged was R1 051.32 (which included December usage, from my old device). This has been happening since January till April. <br> 2. Your system reflect that I was being charged for 5 Gig, when the contract into which I entered with Vodacom was for 2 Gig.<br> 3.I logged another call with Tersia (who refused to give me her surname) Ref no. *** on 24/02/2015.<br> 4.Another one with Celeste Peterson Ref no.S3-8XK1D-DE4M8. <br> 5.I logged on 09/05/2015 is S3-85T28-80DM8 for which I received confirmation via SMS that I would be refunded.<br> <br> Please help