When 100% of your badge code is correct, the final step is to run the mod in the Simulator -- this is the signal for the badge to unlock. But sometimes, you may want to skip this step because you're experiencing an error. Then you have the option of pressing the Skip Simulator button.
This button is located at the bottom the badge instructions on each badge page.
Keep in mind: if you press the button, the badge will unlock but you'll be missing out on a key feature of LearnToMod. Many of the badges have alternative answers -- ie right answers that aren't the answer the badge expects. The simulator will detect when your code is right, even if it's not the answer the badge expects. This can save you a lot of frustration with some of the badges.
Or you can ask support to manually unlock your badge. Just tell them the badge ID number.