Did you do a state return? State is a separate fee and might be the same amount so it looks like you got charged twice. Or did you buy the Desktop program but got charged again for the Online version? That happens.
Did your credit card get charged twice or were the fees deducted from your refund?
How to see your fees
https://ttlc.intuit.com/community/charges-and-fees/help/how-do-i-review-my-fees-in-turbotax-online/0...
For help with fees
https://ttlc.intuit.com/community/charges-and-fees/help/what-can-i-do-to-reduce-my-fees/00/26051
