[blueocto]

Is there a contract or some sort of agreement regarding price? No
Have they paid you any money at all for your work? yes, so far, £600 for 139 hours of work
Have they accepted any design work you've completed as approved? I worked in the office, so everything I designed was on their computers and stayed there
What sort of communication have you had with the client? Mail? Emai? Written? Phone? Yes, Yes, Yes, not anymore
Do you have any emails from them regarding payment of some sort? Only me asking about contract and being fobbed off
Do you have receipts of anything you've had to purchase for the project? Didn't need to purchase anything, but kept a milege count and a record of worked hours

I can average about $125.00 an hour depending on the project. That equals around £62 over here, try $9 that they are trying to pay me!

I recommend you turn the client over to collections. This will be my final letter to them, then the solicitor will chase them.