As per section 4.1.4, "LIRs are expected to enter into agreements with their customers
specifying that the end-user will hold the addresses only for so long as
the end-user remains a customer of that LIR. Such agreements should
also be consistent with the license under which the address space is
being used by the LIR."
The expected as mentioned above is not happening at all in practice. Holding address space from a particular LIR doesn't prove that your are the customer of the same LIR.