The administrative authority may extend the prohibition on return for a maximum period of two years in the following cases:
1° The foreign national has remained illegally on French territory when he/she was obliged to leave it without delay;
2° The foreign national has remained illegally on French territory beyond the deadline for voluntary departure that had been granted to him/her;
3° The foreign national has returned to French territory after having complied with the obligation to leave French territory, while the prohibition on return was still in effect.