Supported Recurring Intervals

BANKINTERVAL
Access Bank'weekly', 'biweekly', 'monthly', 'yearly'.
GT Bank'weekly', 'biweekly', 'monthly', 'quarterly', 'yearly'.
Zenith Bank'weekly', monthly', 'quarterly', 'yearly'.
First Bank'weekly', monthly', 'quarterly', 'yearly'.
UBA'weekly', monthly', 'quarterly', 'yearly'.