Phone repairs take almost a month

Just recently upgraded my contract with Vodacom and the phone they sold me started giving problems within 3 months. I dropped it off at the gateway repair centre in the begining of December 2015 and it has been almost a month now and no communication on when my phone will be returned. I also did not have a phone to make use of my data for December 2015. I hope this data will be refunded to me.<br> <br> Vodacom please let me know when my phone will be returned. Am very disappointed with the level of service.