Ta-Q-Bin up to 7 days delivery

Hi everyone!
We are going from Tokyo to Nagoya, Takayama, Hiroshima, Myayima and finely to Osaka.
We would like to use TA-Q-BIN service . I've heard that Ta-Q-Bin service can keep luggage up to 7 days. But I can find no such information on their website.
Is that true and where can I find this information?
Thank you.

It's true. The TA-Q-BIN website isn't that informative for tourists, unfortunately!

I sent my luggage from Nagasaki to Osaka with a delay of three days in 2014.

Your accommodation (hotel/hostel) can provide you and help you with the forms.

Thank you . But i dont mean delay. We dont need lugage for one week as our trip Tokyo- Osaka is for one week. So we need them keep our lugguage for 7 days

Yu Pack provided by JP Post will keep your parcels include luggage for up to 10 days since they are arrived in the post office.

Thank you! I will check this now.

Thank you Tokyo friend 48. Now I have checked Yu-Pack.
Just one question. If i send my bag should i wrap this like parcel? Or is it OK to send as it is? Without any package?
We have a postoffice near to appartment in Osaka so it should be convinient to use Yu-Pack.
Thank you.

No need to wrap officially but the consignment form(label) may be lost if you sticked on you bag/suitcase directly without a plastic cover.
So I would recommend you to buy a plastic cover for you bag/suitcase at JP Post office. See the cover below(130 - 240 Yen per plastic cover).
http://www.post.japanpost.jp/service/you_pack/package.html

Not all JP Post offices have those plastic covers as stock. If you can find a similar plastic covers, that will work well.

Thank you so much!