Contract *******ly extended

Vodacom extended my 24 months to 30 months without my knowledge. When i ask for reasons or explanations they are unable to give me answers and give me the run around. The account is in my husband's name and they usually call him while i wait to do verifications with him because we do not stay together. Today because they do not have answers for me, they tell me my husband has to apply for a letter of authority for an account that he has no idea what it is about. the only thing is that it is in his name. all payments are done by me, and services are used by me. Busi from customer care transferred me to cancelations department where i spoke to Philani and Adshay who were both rude to me. All i want is my contract to end because i am obviously being ****med here. I have been calling vodacom for the past 6 months to resolve the matter, with no luck.