Internet connection problem

After battling for more than two years with bad or NO connection to the internet, , About 20 calls and 10 legal complains in their offices, with one respons, but no solution, I received a message to inform me that my problem for short term solution is NIL. longterm solution 5 to 10 years. . Many customers in my area got a booster or aerial for better signal. BUT I have to get this message. Now they give my details of suppliers of certern aerials or boosters to install my own for better signal . Buy my own booster/aerial and have you as my service provider, provider for what.??? My montly debit order was well received by Vodacom. !!!