I received a promotional balance offer from Barclays in XX/XX/XXXX, 0 % promotional APR through at least XX/XX/XXXX with a 3 % fee where the transaction must post to my account by XX/XX/XXXX ( copy attached ). I called in to their call center and processed a balance transfer under this program on XX/XX/XXXX. I just noticed on my recent statement that they are charging me 19.99 % where it should be 0 % through XX/XX/XXXX ( copies attached ). Please note they also charged me the 3 % on the {$11000.00} for the promotional fee. When I called their call center, on XX/XX/XXXX, and told her I had the offer letter in hand and read it to her and I told her she could also refer to the call center recordings, they told me that the offer had expired. I again told them that the offer was good until XX/XX/XXXX and I processed this on XX/XX/XXXX and they even charged me the promotional balance 3 % fee. The call rep then put me on hold multiple times for no reason, without notice, in the middle of me talking to her and finally I was cut off when they just forwarded me to a payment option.