The block sequence is based on your movements. To read the code, you will have to rotate some runes counterclockwise (90 degrees). You can read it as shown in the figure below: ...

Save Your Bank’s USSD Block Code Now You don’t want to be Googling USSD codes in a panic. Save your bank’s USSD code as a contact, name it “Block GTB” or “Access Bank Lock,” for example.