VOLte service not working

Eventually, after about 3 months, My VOLte was sorted out. Unfortunately, it worked for 2 days and as soon as my phone did a software update, the VOLte service disappeared again, and is not working. After speaking to Vodacom Customer Care, they said that they re-synchronized my line and after a reboot, it would be sorted out. After doing all of that, the VOLte service is still not active. I sincerely hope that it isn't going to take another 3 months to sort out.