After receiving a phone through either, can you call Verizon and add services that weren't offered at the time of purchase? For example, I just purchased through Amazon and they did not offer the $5 text plan or the $1.99 extended warranty. Amazon can not process corporate discounts. Can I call Verizon and have that discount applied to my monthly bill? I'm assuming that I'll be billed through Verizon, right? Can I take my phone to Verizon stores for service or do they have to be sent to Amazon? Thanks to anybody who takes the time to answer.