Texting issue on iPhone 12 Pro max

Just purchased my iPhone 12 Pro Max and I cannot receive standard text. I stopped into Verizon and they changed out the SIM card, hard reset and called level2 tech at apple. They tried multiple things with no solution. All iMessages work, can send out standard text but cannot receive any standard text back. As many as said this is impacting my business and their needs to be a resolution ASAP.