Hi, my toilet seat broke recently and I need to replace it. The toilet is the back to the wall kind with no access to underneath. Eventually managed to find a replacement that fits to the top but the problem now is removing the existing fittings. Managed to get one of them out eventually, mainly because it was loose already, and its a plastic plug with a washer on top and a long screw going into it with an allan key fitting. The second one however is proving more elusive!! Whenever I try to turn the screw the plastic plug just spins along with it. Have tried pliers, levering it, wrapping electrical tape round to get more grip and general brute force, but the washer on top of the plug keeps getting in the way of getting any grip on the plug!! Any ideas?