On my first month with Woolies and Im dissapointed

So i app**** for store card with Woolies on the 07 August 2015, i purchased the next day. Apparently my statement closed in the 11 August 2015 (which i did not know because the person that was capturing my details on the system captured my email address incorrect). I called a very nice lady who assisted me and informed me that my account is due tomorrow (ofcourse if i dont pay my account will go into arrears). I explained to her that no one told me that my account is due tomorrow and that if i hadn't called the call center i wouldn't have known. She told me my email address was captured incorrectly. I asked her about 55 days interest free period and how it works and she told me my statement closes on the 11 each month (i still didnt understand but oh well). I asked her to speak to a manager to see what can be done coz i can only pay on the 25th and do not want my account to go into arrears, she came back telling me that the manager said that wehn i app**** for the card i knew that i would be liable to pay, i informed her my issue is not paying my account, my issue is being told that i have to pay my account on the 11 Sep and no communication was sent to me. So disappointing 4Woolie