Orchard Bank paid full balance and then they tacked on more Salinas California

I had a balance of 372.72 as of the 7th of April. On that date I paid the full amount and I saw no other transactions listed, and I have not used the card for months. I just recieved a wonderful statement that I owe 68.00 which included a 30.00 transaction fee/debits and a 30.00 late and finance fee. The 68.00 fee had a date of 4-03-08 and I paid the entire bill on 4-7-08. How could I have paid the balance after the 68.00 was supposed to have posted first and not have had that 68.00 reflected in the 372.72 balance. Will this ever end.

Suzie
Lockhart, Texas
U.S.A.