The pictures are rejected not because they are not as per specifications, but because the print quality of them was not at par for their scanners to pick it up for being printed on a PR card.
If the pics you re-submit, are still not fine, they will again ask for new ones.
Just as an advise, try and get your pics as per specifications, but for the print, chose matte, instead of glossy finish.
Thank you for very much for the quick turnaround. I have sent them my pics with my name and date of birth. I was wondering if I can contact them just to let them know that pics are sent on this date or maybe to check with them if they have received it or not?