Find Phone number, Location Address and all other information of First MicroFinance Bank (FMFB) Head Office Branch Islamabad on Branches.pk, Pakistan’s Largest Branches Directory. You can contact them directly on Phone number Toll Free: 0800-34778, or you can visit their location in person, address location is: 16th & 17th Floors, Habib Bank Tower, Blue Area, Islamabad.. First MicroFinance Bank (FMFB) branches are open from Monday to Friday from 9 AM to 5:30 PM, while some selected branches are open on Saturday.