Up to date bank statement? ATM? where do i get one?!?!?

Ok so i am a student and very very low on money, i recently looked at my online statement and it says i have 拢44 left of my overdraft. But i noticed this statement only shows transactions since Friday, it is now Monday. I went to an ATM cash machine to get a more up to date statement at like 2am cos i was so worried about money and it also said i could take 拢40 out of my account. On saturday i did a food shop and i think it may have come to more than this, how can i find out if i am in debt or not? where can i get an up to date bank statement? are ATM machines correct and up to date?|||The ATM that I use gives an up to date mini statement and I believe that they all work on the same system. If I opt to withdraw cash with receipt, it debits the account of the withdrawal and gives me the up to date balance minus the withdrawal. Your ATM will give up to date statements.|||Go into the bank, and talk to a teller. They can provide information about your transactions and answer your questions.