Each self-regulatory organization shall act as collection agent for SIPC to collect the assessments payable by all members of SIPC for whom such self-regulatory organization is the examining authority, unless SIPC designates a self-regulatory organization other than the examining authority to act as collection agent for any member of SIPC who is a member of or participant in more than one self-regulatory organization. If the only self-regulatory organization of which a member of SIPC is a member or in which it is a participant is a registered clearing agency that is not the examining authority for the member, SIPC may, nevertheless, designate such registered clearing agency as collection agent for the member or may require that payments be made directly to SIPC. The collection agent shall be obligated to remit to SIPC assessments made under section 78ddd of this title only to the extent that payments of such assessment are received by such collection agent. Members of SIPC who are not members of or participants in a self-regulatory organization shall make payments directly to SIPC.