Telkom Internet 4MBPS Line Running Slow

I've contacted Telkom now, everyday since Monday, requesting for a technician to come out, they've gone through everything with me over the phone, did a port reset everyday, and everyday I call, they say a technician will call us. This has happened for 4 days in a row. I run a business and the internet speed is pathetic. I pay for a 4 Meg line and only getting 0.30MB. This is really getting to much, and I will consider taking my business elsewhere if Telkom doesn't respond to me with a technician.