Below are the USD codes, and official customer care number to call whenever you want to block your ATM card:
UBA– dial *919*10# from the mobile line linked to your account.
Fidelity Bank– dial *770*911# from the mobile line linked to your account
IBTC Bank– dial *909# from the mobile line linked to your account
Zenith Bank– dial *966*911#
First Bank– send Block to 30012 via text message
Union Bank– send BLOCK CARD NUBAN to 20123
Key stone Bank– call 23470020003000
Sterling Bank– call 070078378464
GT Bank– *737*51*10#
Stanbic IBTC Bank– *909# select my bank and select service request then select block card
EcoBank– text STOP ATM your account Number to 0806326226
FCMB Bank– call + 2342798800
Access Bank– call +23412802500
Polaris Bank– call +2341270850
Wema Bank– call 08039003700