Both my wife and I have ZTE Blade X Max's on Cricket wireless. We randomly miss text messages that were sent. Talked to customer service who said to change the SMC service center number in the messaging apps settings. Unfortunately for me, the messaging app settings has no such setting. Anyone else run into this? How do you get to this SMC service center setting? Tried searching it online and couldn't find anything, searched under normal settings and don't see it also.