Because Huidong belongs to Huiguan. You can use provident fund loans to buy a house anywhere in Huizhou.
I suggest you make a phone call before implementing it.
Location for the approval of housing provident fund loans: Room 2061316, Service Hall of Huizhou Housing Provident Fund Management Center, No.80 Huancheng West Road, Huicheng District; Huiyang Management Department 3393102; Huidong Management Department 8582782; Boluo Management Department 6733696; Longmen Management Department 7883839; Daya Bay Management Department 5560798