[Q] IMEI blacklisted as Lost or stolen, not sure what to do
Sorry if this is in the wrong place, first time poster here.
In December I purchased a nexus5 off of some guy that was selling one in my local area. He seemed like a good guy, the phone was in the original box and I was pumped at getting one for a bit cheaper than they are on the play store. Although this last week it randomly could not connect to the network, so I called Telus (my Canadian provider) and after a half hour of troubleshooting they told me that the IMEI is blacklisted as a lost or stolen device? I feel pretty ripped off and disappointed. I found the guys email that I brought it from and tried to contact him but he wont answer his phone, texts, or email. So I don't know what to do? Am I just screwed and forced to buy a new phone? is there anyway I can change the IMIE address? Or anything that anyone can recommend I should attempt to do? Thanks in advance for any help that can be supplied!