Back cover of fairphone kept coming loose, now doesn't stay in place at all

Hi all,
very soon after getting my FP, the metal back cover started coming lose. The four small metal things at the cover’s right and left sides didn’t seem to hold it in place very well. After a time, the coming loose happened so frequently, I had to bend those a little bit, carefully, to hold cover in place. but now they won’t hold the cover at all! feels like the places in the FP’s side (plastic) are worn out, or the metal cover itself is worn out, but anyway: I now have a phone without back cover, which will become an issue because of dust and dirt getting inside, eventually.
Is this a warranty issue? Or can somebody help?
Thanks
Lothar

I moved 4 posts to an existing topic: How to fix Fairphone that’s slightly bent so that battery and back cover are loose? (bloated battery)

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