We can only lend (something ) to someone who can contact us with a mobile phone and can understand our terms of service which are written in Japanese.
This (item) can only be lent to a person who is able to understand our terms of service which are written in Japanese and able to contact us with a mobile phone.
1, We can only lend (something) to someone who can contact us with a mobile phone and can understand our terms of service which are written in Japanese.
(something) の所に、貸したい物をご記入ください。
lend は物やお金を貸す時に使える言葉です。
lend ＋物＋to 人
または
lend ＋人＋物(この場合toはいらない)
と覚えましょう。
利用規約はterms of service が一般的に使われます。
2, This (item) can only be lent to a person who is able to understand our terms of service which are written in Japanese and able to contact us with a mobile phone.
(item)に貸したい物をご記入ください。
2は1よりももっとビジネス上や、公に対して使える表現です。
ご参考になれば幸いです。
日本 
