No response by Lawrence to return calls

Dear Sir/Madam, I app**** for a student loan with Nedbank. I received a confirmation sms and signed the final papers. I then received a second sms confirming that the student loan was granted. On Saturday 9th May 2015 I phoned Lawrence at Nedbank Edenvale to enquire when the student loan money would be paid out. I was told he would call me back. He didn't. On Monday, my dad, Brian Gibson who stood surety for my loan phoned in to Nedbank Edenvale and asked to speak to Lawrence. He was told he was unavailable but would return his call. He didn't. Student Loan number ***8