It's optional in our warehouse and you get extra for anything over 40 hrs if you're working through ASDA rather than an agency..
There are extra hours available. It is not overtime as such, i.e. There is no enhanced rate just the same rate for extra hours.
Yes if over time job is available you can
Yes if over time job is available
Yes if over time is available they'll offer you
Yes - I could pick up other peoples hours and I could ask for more.
No it was done on a first come first serve basis
Yes a lot of overtime
Yes always available