Worst customer service ever

I am new customer at homechoice and my account is in arrears because I have not received any letter or account number as requested on my email. The consultant are very rude when requesting to call me at the convinient time or do not call at all. I received several calls of the consultant shouting instead of assisting me and I even call the call center to set up the debit order but they keep on dropping the calls. This is affecting me because of their rude behavior and poor customer service