Doormats in the Aygo / Violence?

Hello forum! Now I’ve had the Aygo for some time and am still very satisfied. Especially consumption under maintenance costs impress. Can someone help me with a little something / give advice? The floor mats are obviously clipped in. But I can’t get them removed, no matter how tight I pull on the mat or clip. When at some point the carpet already picked up, I stopped pulling. I just wanted to pull out the floor mat not half the floor Is there a trick or do you simply have to use raw force? Thank you and greeting Thomas