How to say i'm sorry to have troubled you owing to our mistake. in Japanese
1)
こちらこちら(kochira) (n) this way/this direction/here/this one/i/me/we/us/this personのの(no) (prt) indicates possessive/nominalizes verbs and adjectives/substitutes for "ga" in subordinate phrases/indicates a confident conclusion/ indicates emotional emphasis/indicates question手違い手違い(techigai) (n) mistake/blunder/slipupかか(ka) (prt) indicates question/indicates choice, doubt, etc.らごno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verb迷惑迷惑(meiwaku) (ok) trouble/bother/annoyanceをを(wo) (prt) indicates direct object of action/indicates subject of causative expression/indicates an area traversed/indicates time over which action takes place/indicates point of departure or separation of action/indicates object of desire, like, hate,おお(o) (int) oh!/polite prefix to the next wordかか(ka) (prt) indicates question/indicates choice, doubt, etc.けしてすみませんでしたno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verb。。(。) Japanese period "."
