When accessing the drop down bar from the top and clicking the "data" toggle a message saying system UI has crashed and it takes a moment for the drop down bar to re-appear.
Sorry, when clicking on the data icon a pop up displays reading "You've reached the specified data usage limit. If you re-enable data, you may be charged by the operator." and am given an option to select either "re-enable data" or "okay," selecting "re-enable data" results in the crash.
