BMO Harris Credit Card Complaint

BMO Harris Credit card department,

Delinquent account Florida

I attempted to pay my past due balance of $2100.00 on -/-/2016 via - - on my - account. I was not aware that - did not have a bank to bank payment option with -. Thus, even though I fully attempted to pay on the due date, the payment did not post until -/-/2016 because of the check method, the weekend and the following holiday - on -/-/2016. I called - to resolve this issue and did not receive any help. - then charged me a very large late fee and reported to the credit bureau that I was late by 30 days.