4 days in USA with no money

I have a private banking account with Standard Bank and have been a client of theirs for 28 years. Whilst travelling in the US for the last 7 days, i have been unable to use my card for 5 of the 7 days. This is after having to get them to unblock my card.<br> I would not recommend travelling on a standard bank cheque or credit card. They don't seem to be able to manage it. This is the 3rd time that i have had problems like this with them.<br> I have also given up on the concept of a private banker.<br> I will be going back to using Investec who are brilliant at this.