I tried to but something online with a first bank mastercard atm and it got put in my ledger balance cause it didn't go through. Does anyone know how long it will take before it is returned to my "available balance"

Hello Sagator. The way you have described this transaction, it appears it has been put on lien; that is, it is in what you understand to be your ledger balance. In this instance, it will take seven (7) days for the lien to be automatically removed and the fund made available to spend. I hope this response has been useful. If you would like any further clarification, don't hesitate to send an email to firstcontact@firstbanknigeria.com. Alternatively, you may tweet @firstbanknigeria. Cheers