Forget about the shares first.
Get a friend (a real one) then tell him your predicament. In months time tell your friend to call him using office line, let him pretend he's calling from CDSC/A bank then tell the dude you took a loan against the shares and he (househelp) will lose his ownership if he won't produce his Id or come to Nairobi since you have defaulted in paying some instalments. If he chooses to come let him meet your friend and after getting his id and ensuring everything is okay. Tell him to f*** off!!!
If you have built castles in the air, your work need not be lost; that is where they should be. Now put the foundations under them.