Credit card or prepaid card — WELLS FARGO & COMPANY (CA)

Charged too much interest. On XX/XX/18 I applied for the Wells Fargo Platinum Visa with a {$3500.00} credit limit @ 0 % interest rater for 18 months. My credit rating upon application approval was @ XXXX and according the advertisement the interest rate would be based on credit worthiness and payment history and no higher than 24.49 % ( being the highest rate which should not apply to me based on my credit worthiness ) I have excellent credit / payment history with all my open accounts to include XXXX XXXX, XXXX & Wells Fargo. However I am being charged an interest rate of 24.99 % on a {$1300.00} balance when my minimum payment is {$43.00} HOW IS THIS POSSIBLE.. Please help