I was told I would receive a R900 Adidas Voucher!

I had recently signed up with Virgin Active - Before signing up, I was told by the lady who works at Old Eds (Eva) that I would receive a R900 voucher from Adidas just for signing up at Virgin Active. Upon hearing this, I had decided to sign up with her, solely for that reason. She did not mention anything about having to visit the gym 24 times before getting the voucher, she just said that they will e-mail it to me a few days after I sign up. After finding out that I did not \qualify"for the voucher"