Breach of contract

My husband went in to FNB yesterday, 23rd of April, to take out a loan of R20 000. He was approved, contract signed and promised that the money will reflect in his account within 24hours. Today, 24th of April, only R14 000 was paid into his account (no communication of any sort form FNB). He then went to his nearest FNB branch to cancel the loan, as we need R20 000, and was asked to pay the initiation fee of over a R1000! How does this work? They never phoned or emailed to indicate that only R14 000 will be payed?! We have the signed contract for R20 000