***** @ Cell C

Out of the blue I receive an email from Cell C thanking me for requesting an upgrade. I've sent three emails to their ***** department. After each email I received an automated response stating that they will deal with each ***** case within 48 hours. I NEVER hear from them again. The first email was sent two weeks ago. They "upgraded" me to exactly the same days 'package' I have with them already but they charge me a lot more than double what I have been paying. Data has become CHEAPER lately. Why charge so much more, and who gives them the right just to upgrade my contract without my consent?!!?