Electricity reading

The Android app wouldn’t let me submit my electricity meter reading. When I typed in the right reading, the submit button was still greyed out. The only way to get it to go green was to add another digit which was then 10 times too large! I was able to submit the reading on the website, however. I wonder now if I should have added a leading 0? Surely not… For reference, the previous reading was 11459, the new one was 11787. Anyone else had this?