SyncUP worked and then went offline

DO NOT BUY A SYNC UP!!!!!!!

This sync up tracker is nothing but garbage! I got this to track my granddaughter's bus so I'll know when to pick her up since it's never on time. I noticed that by the time she got home the battery was half drained and I was having to charge it everyday. My understanding was the battery should last up to 7 days. So I called Tmobile and at first they said it was past the 14 day warranty but that they would send me a new one anyway. A week went by and no tracker. Checked my email and never got a confirmation and nothing showing on my account so I called again. Turns out they never sent a replacement out and was giving me the same old runaround about the warranty and I would have to pay $20. After going round and round with them they finally said they would replace it BUT FIRST I had to take it to a Tmobile repair store and have a technician check it out and fill out the claim form….WTF?!!!!  I don't have a repair nearby and by this time I was just so pissed I said forget it I'll just keep this one and deal with charging it everyday. WELL..today while tracking my granddaughter's bus the tracker wasn't updating. I knew the buses were going to be behind schedule today but after 30 min it still kept telling me she was still at school! I called the school and nope the bus had left over 15 min ago!!!! When she got home I checked the tracker on the app and it said Offline and No Internet Connection. Grrrrrr!!!!!   So I figured maybe it needs to be charged so after charging I tried again and it was still telling me offline. So then I rebooted my phone thinking that would help but again showing offline! I am so pissed because I had to add another line for this POS!!!!!! I should of known better and went with something else!