Theft - customer no product but mtn has cash paid

on 11th april i went in to purchase a ****le for my sons 10th birthday. after realizing they sold me a usb one i requested a full refund and to get a wireless one. they refused to my me my cash back (i have not left the store)<br> promised eft within 24-48 hours still nothing. went back on the 14th told no it will be 7 -10 working days<br> today went in told no sorry further delay due to not submitting a form. i have had to take a days leave due to being out of pocket (i bought another ****le on same day) - this is unacceptable. and actually theft.<br> so i have no product in exchange for cash spent and NO ONE at MTN seems to give a damn. so, i am off to the police station to lay a theft charge and loss of earnings for today. Unacceptable from a customer perspective and ethics. tried to lay a complaint on MTN website that doesnt work either. Seriously been put in a comprimising situation - not right!!!!