Been first in line for 18 minutes

I've been on hold for 37 minutes. According to the on-hold info, I started third in line. I've been first in line for the last 23 minutes. I am starting to think that there is no one answering calls in the call center. How is it possible to take more then 23 minutes to deal with a query? <br> <br> The voice prompt says \Thank you for your patience"- mine has run out."""