Do you buy refills for these soap dispensers!

Im sure Lysol would prefer we buy the refills for these but I find they cost more than other soap refills.  So I thought I would see if I popped the top off if it would still work without spilling and it does. Im not sure if it will work over and over but in the meantime I can use it and wait for a sale.

I think lysol should make the bottle refillable.  It would be better on the enviroment.  Any thoughts?

Karen