I've been put on hold many times trying to resolve issues but have found and confirmed working some methods to jump phone queues.
"Most of the software has a "3 mistakes and you're bounced" ruling, so pressing the * key three times should send you to an agent.
Alternatively, try * #0 or *0"
Works Flawlessly transferred directly to an agent
has also been said to work when pressed continuously in succession
As a side note here is a video tutorial on jumping phone queues and generally getting to speak to a representative/agent quickly: