Need help on postal code

Hi guys, thanks for your time. Here is my thing.

So, I have a friend who is studying in Japan. Her birthday is coming soon, the reason why I wanna send her some gifts through post office service. So far I only have the address of her apartment. It is kinda full from ward to city, the only thing missing is the postal code. So can u guys please help me with?

Here is the address

Delco Homes, 2-10-19 Befu, Minami-ku, Fukuoka-shi

Thank you very much. I hope u guys have a nice day.

Thanks again.

You wrote the address seems to be wrong.
Here it seems to be correct.
Delco Homes, 2-10-19 Befu ,Jonan-ku, Fukuoka-shi
http://www.tos-system.com/item/de-befu-m.html
Postal number is 814-0104.
http://www.post.japanpost.jp/cgi-zip/zipcode.php?pref=40&city=1401360&...

@haro1210: Thanks for the information but I found the address right on the school's website (YMCA Fukuoka school). This is the address I copy from the site.

2-10-19 Befu, Minami-ku, Fukuoka-city

Also, on my friend's luggage, I was her writing to look like Minami-ku in Japanese (I don't know Japanese, I just look it up and translate). So I am really confused now :(

@haro1210: Oh wait, hold on, I just double check and saw this

she wrote "����" instead of "���" now I think I missed the first letter. So can u please help me that is it true cause the information posted by the school was in Minami, still the one on her luggage was Jonan. Really appreciated