7 days, 3 mediums of communication no response

I am a Standard Bank client who recently relocated to India. I notified the branch before leaving and updated my documents. I was told that as soon as I have a indian cellphone number I can change from my sA in contact number to my indian number. It has been a week (7 days). I have called, emailed and supp**** all the information they requested and tweeted with no response from them. The situation is urgent as I cannot Internet bank without access to my smses from the bank. I am now stranded in India with no access to my money for a week for something as simple as changing my number. Please can somebody understand how urgent this is and that I need just to change a cellphone number. That's all.