If telkom have confirmed there is a 10 Mb line in your area, there is one of two steps you would be taking.
1: You have never had a telephone or dsl line before,
This means you would need to apply for a post paid voice line from telkom this can take a number of days or weeks, Once this is installed you would need to apply for a ADSL service on the telkom line. This can take a period of 14 to 30 working days for the conversion either through Afrihost when you sign up for a "new convert" or thorugh telkom.
If you had the line converted to ADSL through telkom then you would need to request telkom to place the line in the holding pool making it available for an ISP to take over the management of the ADSL line.Telkom will quote a time frame of up to 21 working days.
2: You have a telephone line already,
In this case you would need to sign up for the ADSL line in a "new convert" similar to the first step but the time frame here is smaller this would be 14 to 30 working days.You can use the following link: https://www.afrihost.com/site/product/adsl_lines
Unfortunately you always still need to pay for the voice line rental with telkom.
Please remember when you apply for the ADSL line you would need to choose the speed, You can ask telkom for the exact speed you can apply for, this would most likely be the 10 mbps they have quoted you on.
When the line is converted either though telkom or Afrihost you would be notified. You would need to configure an ADSL router that you might of purchsed with a username and password, Once this accepts you should be connected to the internet.