Terrible after sales service

I have 3 contract products with Vodadom and I must say buying them was easy but getting any after sales service delivery is like pulling teeth. The two Huwawei phones I bought started giving me problems within a month of purchase, one has a software issue that makes it freeze constantly and the other one's sim tray broke when I was trying to change my sim card. I've been to 3 different branches to get the phones repaired since March, I'm told that the phones need to be taken in for up to 6 weeks and they can't provide any phones on loan because they just don't have them. Each of the branches sent me to another branch they believed had loan devices and I kept driving from one city to another to get this resolved. I had a chat with a customer service consultant to provide direction of what I needed to do and she told me someone would call me to book my phone, nothing since. I went to Lakeside again today, still no help, instead we're told they'll have to quote us for the repairs, what happened to the warranty? The phones are barely 6 months old. It's bad enough that when I got the phones I thought like every other Huwawei phone, I'd enjoy the dual sim functionality but it's locked to Vodacom and they don't even disclose this until you get the phone.