No service

I have been struggling since June 1st to get through to the call centre. I keep holding on everyday for hours with no luck. I have emailed.... nothing. It has been 5 days of no luck getting in touch with someone to make a payment arrangement. In a day or 2 my lines get suspended because no arrangement is in place but how should i make one if i cant get through to anyone. This is really bad. Please look at your customer service!