Hi there! I understand you're running into an issue where the phone verification says your number is already in use, and that’s stopping you from moving forward. Let’s get this sorted out together.

To help me better, could you tell me a bit more? Are you trying to create a new account, update your phone number, or maybe log into an existing one? Also, have you used this phone number with El Pollo Loco before on any device or account?

Meanwhile, here are some steps we can try:

1. Check if you already have an account: If your number is linked to an existing account, try using the password recovery or login options instead of creating a new account.

2. Log out and restart the app: Sometimes, logging out, closing the app completely, and restarting it can clear temporary glitches.

3. Clear cache and data (if possible): On iPhone, you can try offloading the app through Settings > General > iPhone Storage > El Pollo Loco > Offload App, then reinstalling it. This can refresh data without deleting your info.

4. Try a different phone or device: If possible, try verifying the number on another device to see if the issue persists.

If none of these help, it could be that your phone number is stuck in the system from a previous account. In that case, I can help escalate this to our support team for further account review.

Would you like me to assist with any of these steps, or do you have additional details for me?