Pathetic service Game Zevenwacht mall

I bought a Conti 300w power station at Game Zevenwacht Mall round about 6months ago. Just to discover it does not work. Since loadshedding kicked it really helped alot. On 6January 2024 I took it back to the store and was advised it's still under warranty it will be fixed. I will get an sms when the device is booked in. It's 13 January 2024 today and still awaiting on a sms. I have called the store numerous times and was advised to wait on this sms wich I have been doing.