No ADSL connectitivity for weeks now !!!

Telkom has logged the same fault 4 times in a row, and they don't fix the problem. I am paying for a much needed service without any service rendered. No one sorts it out, and it takes over a week for them to respond, then they just close the call before sorting it out, hoping he next person will sort it out. This is outrageous. Since we have lived at this address for 4 months now, we have had connectivity problems with ADSL. Several calls logged. And now been without a stable connection for over 3 weeks. I work from home a lot, and this has influenced my income already. When you speak to them they all have the same story. Now they give me a direct number for their cabling department, and then it just rings or they cut the line, while I am holding for over 10minutes already. I am so frustrated and desperate