GlobalLB::Pool::set_member_enabled_state XML issue

I am trying to disable a member using GlobalLB::Pool::set_member_enabled_state something is wrong with my XML it does not return any errors but it does not not perform task

http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:pool="urn:iControl:GlobalLB/Pool" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/"> http://schemas.xmlsoap.org/soap/encoding/"> /Common/TEST.COM_PRIMARY_POOL /COMMON/MW_OSB_R1_80_VS /COMMON/pdc-ltm-test-app 0