Hi. Thank you for sharing your experience with your LG Refrigerator Air Filter. The way you described finding that the filter does not fit because of the added frame gives a clear picture of why this situation has been so unexpected, and we appreciate you taking a moment to explain what happened. Your feedback helps highlight how important accurate compatibility information is when maintaining your refrigerator. For reference, you can review this helpful LG guide on identifying the correct water filter for your specific refrigerator model:
https://www.lg.com/us/support/help-library/lg-refrigerator-how-to-replace-the-fresh-air-filter--20152285515947

To allow us to properly investigate the details of your specific product model and to see if there is anything we can do to assist with this water‑filter compatibility issue being encountered, please send us an email at lgdigitalcare@lg.sprinklrsupport.com if you need further assistance. ^James