POOR AND DISHONEST SERVICE FROM VODACOM TEPAIRS CENTRE POTCHEFSTROOM

I booked my phone(Samsung Galaxy note 10+) for a faulty microphone on 20/02/2020 at vodacom store and they took it to their repairs centre in Potchefstroom.The phone came back today but it still has the same problem and vodacom want to book it back again which will take much longer to repair as the repair centre confirmed that they don't have repair parts for the phone. I am very annoyed because they told me that my phone is fixed but they knew they were lying. They didnt even test the phone before sending it back to me. Now I am expected to stay another 2-4 weeks without a phone that I just bought it 2 months back and vodacom customer care is taking me pillar to post.i just want my phone to be fixed or replaced with a new one as my business is suffering without the said phone. Job number is ***2.