Vodacom Online Order Cancellation

I bought a 40G data and router from Vodacom online on the 11th of December 2019. On the 12th of December 2019 a lady from their sales department by the surname of Letwaba called me to confirm delivery address n etc. I then asked her to change my address since she is saying the order will be delivered on the 13th lf December 2019. unfortunately that did not happen. I called Ram to ask about the delivery n they told me the order is still with vodacom because Letwaba provided an incomplete address on the system. I then requested vodacom n Ram to change my address n told them from the 18th of December 2019 i will not be around Gauteng. I politely asked them to cancel the order and until today nothing is being done. The call center agents are not helping at all. I am very frustrated about the whole issue because i want that order canceled. I am tired of being taken from pillar to post... I am a loyal customer of theirs n thinking of canceling the two contracts i already have with them.