Appalling store manager at Musica Ballito

I had taken my daughters Bubblegum tablet for repairs for the second time to musica at the Junction Mall in Ballito. My first encounter there I asked for a refund as I had already exchanged the unit at gateway branch just 2 months earlier for the same issue(tablet not charging). The manger at the ballito branch was not there so a salesperson helped me and called the manager to get authorization for a refund. the manager declined it and said I must take another unit, which I did. This unit lasted a couple of months and has broken again. I went to the store at the beginning of September and spoke to the manager again and he refused to refund me but insisted that the device be sent for repairs. I left the device there and was promised it would be repaired within 14 days. One month later no calls to say device has been repaired, I decide to go to the store only to find the device has not been sent for repairs but has been sitting on the back shelf all this while. The manager Irwin refuses to take responsibility for his actions and refuses me a refund again.