Change on order from buyer


Hi I have had a customer request a gig. they say they like the work but have added a extra part to the gig. AN EXTRA GIG OF SOURCE FILE. However they have said they dont want the source file now and could I cancel the source file order, now fiver system wont let me send one of the revisions saying that I haven’t sent the Source file and wont let me carry on any further with the revised image. Id there any way to do this as If I cancel order then I will be punished on my gigs