Upgrade nightmare- there is no such thing as 14 day return on an upgrade, they still charge you for a device you returned!!

After weeks of phone calls with useless people, supposedly solving my problem just made it worse. I have still not been refunded for the upgrade I cancelled in March. Now they have even charged me R443,76 for a device I have send bac****!!! I have spoken to the accounts department about this but nothing has been done!!!!!!!!!!

What happened to the 14 day return policy???? Why am I charged for a piece of #$&-%$ device, I have returned?????