ᐅ IKEA drawer assembled incorrectly

Hello,
I have a problem with a complementary drawer that I assembled incorrectly. I inserted this plastic screw piece the wrong way around (with the closed side facing outward) into the hole. Now the runner won't click into place. I also can't get the piece back out. Is there a trick to fix this, or do I need to go to Ikea again?

Do you mean part 102349? In that case, I would simply drill through it.

I made the same mistake and used a corkscrew to pull the thing out and reinsert it the right way around.