I got a Verizon IPhone 6 plus on ebay, and I use it with my Verizon sim card, but when I went to Brazil and tried an international sim card, I found out that it does not work and it shows as invalid sim, on my wifes iPhone 6 with is a Verizon phone it works fine, but for some reason on my it does not, I call Verizon and they told me that I can not exchange the phone because I did not buy directly from Verizon, what a load of crap so what I bought on ebay, it is still a Verizon phone and I am currently a Verizon customer, now I can not use this phone for traveling, does any one knows how can I get this problem solved.