Dishonest & Poor service!

I signed up for a Vodacom Powerflex contract in January, after payment was deducted from my account, i was supposed to be contacted within two business days by courier to arrange delivery. After spending hours with call centres, trying to track the status of my sim card, no one could help me and i app**** again, process repeated, payment deducted AGAIN, but still no response....So i am now paying for two sim cards every month, which i do not have access to use or to cancel..?