I NEED TO UNDERSTAND WHY I AM PAYING FOR THREE

I called in and spoke to an agent regarding my invoice for this month ,my contract ends this month the 30th and i already cancelled it , my question is that i need to know why i was billed 3 invoices for last month .<br> 1st invoice which i am aware of is *** R1165.97 , but now i have 3 invoice i dont understand and i need to pay for this but i wont be able to pay for something i dont understand ,invoice number *** 788.27 and *** R788.27 AND *** R788.26 , Please advise on those invoices because i am confused , why am i pay 3 times in one month , am i now charged for july and august even when my contract ends in 30 june , PLEASE call me and make me understand , even your accounts doesnt understand why ?and i am still 2waiting for their answer , the guy who helped ,me gave me a good service but i am still enquiring about the three amount that came in one month and bounced three times and now my bill is R3063.60