Unable to transact on my internet banking-

1.I changed my cellphone number on my profile because I am out of the country.(Uganda) 24 days ago<br> <br> 2.I have not been able to do any transactions since then because I am not getting an authorization notification on my mail.<br> <br> 3.nedbank is telling me that it will take them many days to transact, meaning I don't have access to my money. They refused to even give me an interim method for me transact<br> <br> 4.My case number is FI*** CCM ***