Account Access Denied

It is very inconsiderate and unprofessional to be denied access to your own account. This happened to me for the second now. Both times I ended up being stranded in the middle of nowhere because someone in Standard bank apparently keeps putting a block on my account. Fist time it happened I had to leave my car at a filling station as I could not pay for the petrol and had to walk 7 kilometers to the nearest branch as I had no cash on me to even get a public transport., only to be told at the branch that someone put a block on my account and that they had no idea as to why that was so. But they unblocked it and it happened again today (6th May 2015). I was stranded once again and had to call some one to come help me pay as I was again denied access into my account. The slip I kept getting said it was error code 57. I called the customer service center (reference AHX3769) only to be told they can not do anything and that I had to go to the branch. It was the same story that there was a block put on my card. Apparently to do with my profile not being uploaded. It is ridiculous and inconsiderate for Standard bank to not issue me a new card and block the only one I have.