We're doing a formal complaint. My fiance was mis...

We're doing a formal complaint. My fiance was mistreated by emergency dept staff in follow-up for abscess on her tailbone. It put her in agonizing pain & when she screamed I got up & yelled at them, & the nurse threatened to have security escort me out. We were given a wrong phone number to call back for the complaint process, & then given a bill of over $3000. Rudest staff I've ever seen & my fiance is still scared to go back.