crwdns2934241:0crwdne2934241:0 Mr A

crwdns2934249:0crwdne2934249:0:

Have you already installed the iOS 12.1.3 update? if so then what your describing happens to a lot of apple users. this link http://osxdaily.com/2019/01/26/ios-12-1-3-cellular-data-problems-fix-iphone/ should help you fix the problem. Other than that have you tried rebooting it in airplane mode or  resetting the network settings?

crwdns2915684:0crwdne2915684:0:

open