That sounds a bit odd Matt; but be careful how you go with this. I'm assuming you've got spring compressors on and the strut removed. If so get a length of rope and get as many turns tightly round the coils as you can and tie it of tight. This'll make it safer to work on for starters. You can then start levering on the top mount between the mount and the top spring seat. There should only be a washer above the top mount, the top mount itself and the upper spring seat. Not a lot to shift and usuallyready to part company.