I deleted my account by mistake — can I get it back?

まだ日本語では提供されていないため、原文で表示しています。上のメニューから翻訳できます。

Within 30 days, yes. Sign in again the way you always did, and the account is restored as it was. The app welcomes you back.

After 30 days the account has been erased and cannot be restored. Signing up again with the same email creates a new, empty account. Your wallet is unaffected either way.