Sim swop/Wrong status of account

I went to the Alberton Vodashop on saturday for a sim swop on my contract account. Sim card is still not active and after phoning the vodashop and being told my account is in arrears the swipe can not be done. I phoned Vodacom accounts to be told that because of the public holiday and weekend my account has not yes been debited but will be done today but the arrears status will only change within 3 days. Now I paid R70 for a new sim (where prepaid clients only pay 99c) and can not use the service I paid for, because of a Vodacom system restriction. Why must I as a contract client pay R70 for a new sim when a pre-paid sim is only 99c? Why can my service not be made active if you are the ones only debuting my account late? And why must I explain that I am not in arrears and be labeled as \in arrears"?"""