How to Extract pixel value by GCP points and GCP mismatch when i import via Text

Good morning

In sentinel 2 I export 22 GCP points from MSIL1C data. After resample and C2RCC process again i try to import my exported GCP file in processed image but My GCP point fall below the original extracted point which presented in MSIL1C Raw data. i don’t know what may be the reason if anybody know kindly help me.

Thank You

Thank Youkindly