Not getting full advertised speed

Hello, I just upgraded my modem to a Netgear Nighthawk CM3000, which I selected from the approved Next-Gen compatibility list. My account plan is for 2 Gbps down and 250 Mbps up. However, after installing it my speeds are measured at 1.38 Gbps down and 42 Mbps up. After an online search, I'm curious if my modem was pushed the wrong provisioning bootfile. Would you be able to verify that my account has the 'Next Generation Internet' rate codes active and force-push the correct 2000 Mbps / 250 Mbps mid-split bootfile to my CM3000 if needed?