Asked to start work before contract start date

[kaiser78]

I would attend and charge, as it shows keenness on your part. As worst, all you will lose if 1 days pay if goes t*its up.
Certainly wouldn't do it without charging as suggested by GillsMan.

[codeseo]

If it were me, then I would want a contract in place to cover the period that I was intending to work and invoice for.