I wanted to test four different ISPs with the LHGG LTE6 kit to check which one provides the fastest bandwith in my area.

The first micro SIM card I used was inserted and ejected with no difficulty, but the second one got stuck. I've been trying to pull it out with a SIM card eject tool but no succes, so I decided to check if anyone had the same problem. While I was browsing the Internet for a solution, my reckless brother came up with "a brilliant idea" of using a small flat screwdriver and it only worsened the situation.

Is there any possibility of removing the SIM card?

Take the cover off and take out the PCB, you should be able to work it out with a fine screwdriver or skewer. Same thing happened to me.