Is it normal for an Agency to progress a contract before receiving a Purchase Order?

[Willy Win]

I secured an offer of a gig 2 weeks ago with a third party agent. My contract is being dealt with by the third party but my contract is with the preferred supplier and the preferred supplier's is with the end client. Compliance checks have been completed on the third party's side and some amendments...

[LaunchpadBS]

I'm having an issue with one of my public sector clients I've been working with for the past 5 months, they're claiming a previous manager messed up the Purchase Order when my contract was renewed, and they've now run out of budget to pay me. It get's a little more complicated as the team I'm working...