toilet

now the problem is still the c3 flusher still not going
looks like a previous owner took off the 10 amp fuse holder in the outside cassette  by mistake so when put fuse back in had to horse it in and bend the fuse so wouldnt fall out
replaced the fuse and manualy held it in while partner turned flush and worked but just trips the switch beside it 
it is very tight space and cant get the grey fuse holder back on looks like slides in from top but no access for my chuubby fingers and top is out of sight
any ideas