You should not hire the cheapest vendor or service you can find. It will come back to haunt you.
When I get web site cleanup projects, they usually involve a frustrated client who is firing somebody else. They complain that the other vendor did not return voicemail, was slow and did poor work on this project. It could be that the vendor really was lame. It could be that the vendor has other clients who are paying more and therefore getting more of his time, energy and attention.
If you are one of the higher paying clients, you get better service. If you are one of the cheapies, you get the shaft. From Escape the Cubicle