Barclays PLC Credit Card Complaint

Barclays PLC Credit card department,

Balance transfer fee California

I have this card since -/-/- with the initial balance transfer of $450.00. I have paid on time never late. I do n't use it unless it is emergency, not checking my statement. I did not realized that I was still being charged for the balance transferred since -/-/-. I also did not realized that my monthly payment did not go towards the beginning balance transferred. I also did not know that I was charged with the interest of 23.24 % each month to this day -/-/- of $8.00 per month. How will I ever pay this off? If non of my payment goes to previous balance. Why are they splitting the payment to purchases and not toward the initial balance transferred. I think this is so unfair not to apply to the oldest balance first.