******* at cash crusaders rosettenville

i bought a phone at the cash crusaders in Rossettenvile, on the 06/02/2020 on the 07/02/2020 wanting to set my phone up and the ****** thing started to over heat, downloading my applications such as dropbox and whatsapp the battery life jump from 88% to 10 % within 5 min... want to return the phone i get told they cant return the phone but it was within the 7 day grace period?

they are a bunch of ****** that just take peoples money....