Hi Nabil,
Can you figure out if the pins are just damaged or if they are actually broken?
In case the pins are damaged, there might be a chance to simply but carefully bend them back into their original position, for example with a tiny item or tool (e.g. toothpick or mini screw driver). Make sure that you remove the battery first before you try any repair on the sim card reader.
Use t[guide|13445|his teardown of the Z10 here on iFixit] which will help you how to open your phone.
Steffen