My s5 will not let make or receive calls it says I am roaming. I have had this problem for a year now. I contact support and my phone will work for a day or two then I am back to roaming. This when at home in Georgia. I was told by Verizon that I cannot cancel my service without a fee. Verizon is not honoring their contract by not giving me what I am paying.for. what can I do? Perhaps sprint will pay my early termination fee. Any ideas?