There is only a few currency exchange service at financial institutions in Hakone town. The service is available at banks and post offices in Odawara. In Hakone town, you can withdraw money at post offices or convenience stores with the credit cards.
There are a few restaurants and souvenir shops accept credit cards.
There are some public phones you can make international calls. (Prepaid telephone cards for international calls can be purchased at convenience stores)
Information Center for foreign tourists
Hakone Tourist Information Center(one is located inside Hakone-Yumoto station and the other is in front of Hakone-Yumoto Station), Togendai Tourist Information Center(located in the Togendai Terminal). English is available at each information center everyday, Chinese and Korean are also available at the one in front of Hakone-Yumoto Station on Saturdays, Sundays and public holidays.
Odakyu Travel( inside Hakone-Yumoto station), Hakone Tourist Hotel Association( in front of the Yumoto Station),Hakone Tourist Information Center.