Hi, Saliboy. Welcome to the BB. (You should start a new thread to get more replies.)
Meanwhile, try using a pencil (avoids chopping off your finger tips) to see if the fan will turn. If you put the controls into the position for heat to go to the ****pit (vs the windscreen or off) you can peek in the bottom of the heater unit in the passenger side footwell (assuming LHD) and glimpse the fan blades.
The blower motor sits at the very bottom of the heater unit. Any moisture that gets in there will affect the blower motor. If you are lucky it's just stuck from non-use. Hopefully poking it with the pencil will un-stick it. Otherwise the heater assembly will have to come out to access the blower motor for repair/lubrication.
Put 'heater' in the search box to find lots of threads about the problem.