I purchased a prepaid starter kit at Target for use in an unlocked Canadian iPhone 6 for a trip to Maui.  I could not activate the SIM card in my phone either personally, with Verizon telephone support, or with live tech support at a Verizon corporate store.  I was told Verizon could not refund the purchase and to return to Target.  Target said they would not refund the purchase either.  Has anyone had experience with resolving issues like this?