and he wants to charge someone 60 quid to take his mistake away for him... ;D
why dont you just throw it back in some tonne bags and give the merchants hi-ab driver a drink to drop it back at yours..
kinda hard not to spot 2 tonne of sand just sort of sitting there, minding its own business..
or just leave it there... tell the customer its your guarantee, youll need it when it all falls off again come january.. ;D