Line not upgraded

I Recieved an sms on the 5th of January 2019 to say I will receive an automatic upgrade to a 10 meg line today when I called no one seems to know anything about this billing refers me to sales and then sales says I must speak to billing and I called the line to check what's wrong with my fiber they tell me speak to someone else an hour later and still no help why would I put uncapped if I wanted it capped then I am told that the sms I received which states it will be automatically upgraded is not true. Telkom staff cannot help if they in billing and sales cannot help as they deal in sales. I want to know was this sms true or not and if it's true why was my fiber not upgraded to 10megs as. Stated Dear customer, Telkom's entry-level Fibre speed has increased from 4Mbps to 10Mbps. As an existing 4Mbps UNLIMITEDhome customer, you will automatically benefit from this upgrade. Go to https://tlkm.link/10MbpsForcedMigration to view the impact of the speed upgrade on your bundle and monthly subscription. We value your continued support. Telkom Team