Hi there! I understand that one of the prongs on your Ember mug charging base is stuck down, and as a result, your mug is not charging. Let's work through this together and see if we can get your mug back to charging properly.

First, can you tell me:
- How long has the prong been stuck down?
- Did this happen suddenly or gradually over time?
- Has there been any exposure to moisture or spills on the charging base recently?

While I wait for your details, here’s a simple set of steps you can try to free the stuck charging prong:

1. Power Off and Unplug the Charger: For safety, unplug the charging base before trying any fixes.

2. Check for Debris or Moisture: Sometimes dirt or moisture can cause the prong to stick. If you see any visible grime, gently clean around the prong.

3. Use Isopropyl Alcohol and a Cotton Swab: Lightly dampen a Q-tip with isopropyl alcohol (rubbing alcohol) and carefully run it around the stuck prong. This can help dissolve any residue causing it to stick.

4. Gently Wiggle the Prong: After cleaning, gently press and release the prong a few times to encourage movement. Avoid using excessive force to prevent damage.

5. Air Dry: Make sure the base is fully dry before plugging it back in.

If this simple cleaning and freeing fix does not work, the prong’s spring mechanism might be faulty or damaged, which is more common over prolonged use. In that case, there might be some DIY repair tricks like replacing or “unbinding” the pin, but I’ll guide you with caution if we get there.

Please let me know if you’ve already tried any of these steps or if you notice any damage or unusual behavior with the prong or charging base. This will help me provide the best next steps.

Looking forward to your reply!