Invalid Promises of vouchers-Open a new acc online

I have been an American Swiss Customer for less than 5 days and I am already very disappointed. I opened this account because of the Ad campaign, to get R1500.00 voucher; if you open it on line. I did, and all was pre-approved quickly; pending the Fica docs, payslips and id that I needed to take to my nearest branch; which I did. The process then got stuck, as each time I will get text messages to submit my supporting documents. The branch kept sending the docs. Then I started getting text messages that the account has been approved, when I went to the branch; nothing was done on the system. The Phalaborwa branch phoned head office again and they made me apply telephonically as the application was not yet processed. I had to give my expenses, child support, monthly commitments over the phone whilst the store was parked with customers. But at-least it was opened, thanks to the branch`s gracious shop assistant. Now, I CANNOT GET THE VOUCHER BECASUE THE PROMOTION WAS UNTIL THE 20th Of March. What? No where on the ad does it talk about dates. If it ended on the 20th, why is`t still on the website today (the 2nd of April)? Why mislead people to get new business? I want my voucher.