Goldmark refund

hello, I'm new at this and as such I accidently clicked the speedup button (its pretty big) and sped up a workshop, since it only takes minutes I obviously didn't wish to speed it up for 1000gm (i'm sure ill find much more useful ways of spending it)

so I have two questions,

1. Can I have my 1000 gold back please

2. why is there no confirm button to prevent this happening?

thanks

Bogdog