Guaranty Trust Bank (GTB) is currently undergoing maintenance on the services that support card payments. As a result, you might experience increased failures when trying to make payments with GTB-issued cards.
Other bank cards will continue to work as usual, as will other channels such as Pay with Transfer (PWT) and Zap.
The maintenance window is from 2 to 4am WAT, and normal card processing will resume at the same time. We apologize for any inconvenience this might cause.