Lost the lining to 2 cup filter

Our two cup filter no longer has the metal piece inside with the holes. You can tell in the photo. It took us awhile to figure out why the machine wasn't working and were even going to send it back but then I noticed the difference from the single cup filter that we never use and the double cp filter. I am guessing when we were hitting out the coffee grinds in the trash it fell out also. We got this less than 6 months ago so I hope it has some more life in it. I could not find out how to contact the seller but I was hoping I could be sent a replacement 2 cup filter? Please let me know. Thank you.

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