phone dololo gone missing in the hands of ackermans

my sister and I went to buy a phone in ackermans letsoho shopping centre in katlehong 2018 march . phone had a problem of network and screen changing colour nd switch off . we took the phone back o store till to date we haven't received the phone , first we were told they cant the phone next they are not able to get hold of the department . after a year already no phone