I am extremely disappointed in the service I have received the past several months. I bought a Samsung phone approximately a year ago at Best Buy. The phone was unlocked and was advertised to work with my carrier however I had issues with it from the beginning. After using it for several weeks, the phone started to malfunction. I contacted the Samsung customer service line and I spent hours on the phone troubleshooting it. They told me the issue was resolved even though I experienced the same issue only hours later. I contacted Samsung a second time and they troubleshooted the phone again for several hours. Yet again I experienced the same issues. I contacted Samsung a third time and I was informed to take the phone to an authorized repair center. The company authorized by Samsung “UBreakifix” attempted to repair the phone on several occasions. The phone worked for a few days and then started to malfunction again. I contacted Samsung yet again and they had me to ship it to a Samsung repair center. They kept the phone for an extended period of time. I was told the entire phone was malfunctioning and the entire motherboard needed to be replaced. Once I received the phone back, it worked for a couple weeks then started to malfunction yet again. After losing confidence in the Samsung repair center, I contacted the carrier and they told me the phone was not designed very well for their network even though it was advertised that way. I contacted Best Buy where I purchased the phone and they told me they stop selling the phone (probably due to complaints). I sent the phone in for repairs yet again and still have not received an answer as to what is wrong with the phone or what options are available. I have barely used the phone; it’s been in the repair shops or in storage due to the following issues: I am not able to make phone calls when the wifi is on or at all. Once I shut the wifi off, I have to make phone calls several times before it goes through and it does not receive all of the calls. They still have not given me refund or replacement.