Incorrect billing and contract

Dear Cell C,

I want to know how my account went from being a prepaid account to an open line with the limits described below.

Please reverse to reflect what I signed.

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Dear Agent 89, Thank you for contacting Cell C. We received your request about your account. Kindly be advised that the contract is a Postpaid (open line) and current account limit is 403.51 and subscription is 301.63. Please note that any out of bundle usages for October are billed in November and November out of bundle usages will be billed in December , that is how the contract works. Please refer to attached invoice of charges of November . For further assistance contact our Customer Care Line on +27 84 135/135 (free from your Cell C Phone Number) alternatively you can send us an email to **********