YOU SAID:

i'd love to voice a complaint, however, the yelp app is down

INTO JAPANESE

苦情を申し立てたいのですが、yelpアプリがダウンしています

BACK INTO ENGLISH

I want to file a complaint but the yelp app is down

INTO JAPANESE

苦情を申し立てたいが、yelpアプリがダウンしている

BACK INTO ENGLISH

I want to file a complaint but the yelp app is down