ONE- alwaes make sure that u pay the exact amount for ur phone bill...
so that u nid not have to pay extra amount the next tym ur bill arrives...
TWO - make sure that u alwaes bring the exact amount for ur phone bill...
for e.g., u haf to pay $28.32... do bring that 2 cents along... coz u nvr noe if they haf the change for u...
THREE - make sure that they deduct exact amount from ur phone bill so that hte unpaid cost will not be 'overload' the upcoming bill...