Paying R579 for a service that doesnt work!!!!!!

Since Feb we have had issues with the internet at home.The wifi keeps dropping, its slower than what it was at the very beginning and still we have no success. It is absolutley pathetic that you pay so much money and NO ONE can assist you...<br> After sending an email, they still simply dont bother responding.... I want this sorted out by this weekend otherwise I will switch service providers..... The more I tell them it is probably the router the more they ignore what I'm telling them.<br> Quite frankly, I'm tired of holding on 40 minutes every time you phone the call centre... You guys can see on the phone number that we have logged NUMEROUS FRICKEN EMAILS!!!!!!<br> Seems I might have to take things further if no one contacts us