Very Poor assistance in emergencies

What a useless call centre, I have been calling repeatedly for an hour and all I get is we are so sorry but we will put you through and the I listen to bad rap music and nobody answers my cal. So what must "a valued client" do to get hold of a competent person who is interested in assisting with my request to put a hold on a payment for services that were not properly executed? I will be closing all my accounts tomorrow because this to me is totally unacceptable!