Use our online blog to post any complaints or comments about the library:
https://library.aru.ac.uk/feedback/yourfeedback.html
If you want to make your complaint or comment more privately you can email us at:
ask@aru.libanswers.com
If you are in any of our libraries there are paper forms for compliments, comments and complaints that you can fill out and post in the boxes kept near the forms.