I have an iPhone 5 on T-mobile service. I have an issue with receiving group messages in a group of 8 people including myself. I'm the only one who has T-mobile service, 5 of them have Verizon and the other 2 people have Sprint. I have had this phone for over a year and have never had an issue with receiving group messages with the same exact people. This all happened about 3 days ago and has been an issue ever since. I'm able to send out messages in the group but will not receive any of their messages until hours later or sometimes not at all. Individual messages come in just fine but group messaging will always be delayed. I've done everything I can think of to fix the issue. I've signed in and out of my Apple ID, turned MMS and Group Messaging on and off multiple times, swapped the SIM card in the phone twice (the last time was yesterday), reset all network settings, even erased the entire phone and restored from my iCloud backup. I'm not sure what else to do to fix the issue other than replace the phone. But if it's a network issue with T-Mobile then I'd rather not get a new phone. Anyone else experiencing this issue as well? If so are there any fixes for it?