Poor Customer Service

On the 14-06-2020 I visited Huawei Cornubia for a screen repair to be done on 2 of my MediaPads T1 8.0. I was quoted R300 each for the repair of which I paid cash after walking to the bank as this store does not accept card payments for purchases less than R1000. Before booking the devices in the consultant took it to the technician at the back that confirmed that it’s only the screen that needs to be replaced and no additional cost. On the 19-06-2020 I try calling the store 5 times and no answer. I try again on the 20-06-2020 and no answer same on the 22nd. I go to the store and they tell me Job#7970 is complete however Job#7971 is awaiting the screen. I did not receive any call from this store on feedback on my devices. They provide me with a WhatsApp number that is always OFF. I send a message and get a response 24hours later. On the 24th June I receive a call to survey my repair and I advise that I am still awaiting 1 more device. I am told they are not sure when will the part come in. I wait. I then receive a call on the 06-July stating that I need to pay R350 more as the screen is cracked and needs to be replaced. I tell the consultant that was what I paid for already, A SCREEN REPAIR. Then he goes on about inner and outer screen which makes no sense as the device just has one screen. I am so frustrated with this store 1. Not customer friendly, 2. No feedback to customer, 3. No customer care. 4. Waiting time instore is super high. 5. Worst repair turnaround time. I asked for a supervisor or manager to call me back and to date I have not received a call. Very disappointed with the service rendered. I paid for a screen repair which was a quote that was provided by the store before booking the device in. I would like my device repaired at no additional cost.