When OVO purchased the Consumer business from SSE contracts of supply to it's Customers for electricity and gas were "novated" without reference to SSE. Customers were switched to the OVO Terms and Conditions of supply without the agreement of Consumers, moving payment terms in my case from quarterly to monthly payments. I have not accepted this fundamental and cardinal change, but this did not stop OVO in submitting demnds by the previous Direct Debit used by SSE. Such unilateral action has no basis in law, causing me to cancel my Direct Debit Mandate. The saga continues which as a cancer sufferer is far more stressful than the disease. The problem is magnified by OVO having by and large outsourced their first line Customer Services to an outfit in South Africa. These individuals have the bare minnium of competence in the English language, are rude, threatening and have no coscience. I am minded to believe that OVO recruit at the lowest possible cost, employing individuals that could well be confused with the inhabitants of a zoo.