I took out a 3k balance transfer for a friend in June 2023 that expired May 2024. I had made several payments and purchases during that time. In February 2024, my friend paid $3500 to my account from HER bank account (never used before) to pay off her balance transfer. From February to May alone, I made over 8k in payments to my card. June 2024, I receive TWO interest charges (30%) on my statement; one for purchases and the other for the balance transfer. However, that made no sense because I have made more than enough payments to cover that. When I called jetblue they referred me to the crediting agency, Barclays. They informed me that any payment made would go straight to the purchases with a higher interest regardless of the expiration date of the balance transfer. THERE IS NO WAY for the customer to allocate a payment towards the balance transfer and barclays does not allocate any payments towards the balance transfer even if it expires. This means, NO other balance can be had on your card if there is a balance transfer. I have approx 20k limit on that card, and use it frequently and make frequent payments. it is not realistic to not use the card at all. When I spoke to a manager and asked if that means even if I made a purchase last week and made a payment, it would go to that transaction not the 0% interest, she confirmed YES. How can the transfer ever be paid!? In the last 45 days I have made purchased THREE flights, (708, 708, 562) and my current balance is 2k. When I look at the June statement, it says balance transfer purchases balance is 1021 and regular purchases 1009, but that is incorrect! No payments before April of 2024 were applied to the balance transfer AND NO NOTICE WAS PROVIDED TO ME. This is EXTREMELY predatory and puts consumers at risk. Barclays should absolutely be able to allocate payments or allow consumers to do so to avoid additional interest or penalties at such a high rate. I was told my only solution is pay off the entire card