PayPal Credit Card Complaint

PayPal Credit card department,

Advertising and marketing California

Used the PayPal interest free for 6 months option. I paid my balance in full on the purchase I used it for within the 6 month promotion. I have gotten - statements on the interest and late fees that were incurred during the 6 month promotion. I am now in collections for the fees and late payments that should have never been applied according to the promotion of 6 months deferred payment with no interest. There is already a lawsuit settled from PayPal regarding this exact issue and the customer service representatives will not correct problem.