Adsl line

TELKOM only provides the adsl line, and this line drops daily for an hour. I've logged numerous calls through my ISP and all your tech guys do, is test my connection from the office and by then my connection is up and running. They never come out to physically test my connection or provide a reason as to why my connection failed to sync with my ISP for that hour. I work from home most of the time and the drops usually occur at night, but when it happens at 10 in the morning, I can't get any work done for an hour. Only thing this company is good at ís billing people!