Seller wants a copy of the survey report

Hi all

I pulled out of a sale few weeks ago due to the level 3 survey report. Today the estate agents emailed me stating the seller would like a copy of the report and asked whether I could forward them the report, however I paid a lot of money for it which included paying extra for estimate costs and valuation. I'm thinking of asking them to contribute to at least half of the cost? What would you do?