Faulty Phone from Ackermans

We bought a mobiCell at Ackermans Wonderpark on 14 December 2023 for my daughter as a Christmas present. On 25 December we gave her the phone only for the phone to malfunction later on the day. On 28 Dec we returned the phone after coming back from holiday and they booked the phone for repair as 7 days have passed. We only got the phone back on 3 Feb 2024 after constant follow ups and the report indicated that they updated the software as the android system was faulty. We tried to install apps again and the phone crushed again on the same day. We tried to return the phone on 4 Feb 2024 for a refund as the phone seems to have a factory fault but they refused to give us a refund or a new phone, saying that they need to book it again. We refused and requested that the matter be escalated to the manager as we did not want the faulty phone again. They told us to return home with the phone and they will update us on the way forward. Until today, there is no way forward from them. We called their customer care today (15 Feb) only to be told that a phone needs to be repaired twice before a refund or replacement can be done. If their technicians failed to repair it for the first time, how will they repair it for the second time? Now we are sitting with a new phone that is not working. I will never buy anything from Ackermans as their customer service is extremely poor.