Tight Tonic Charged More Than the Approved Order Price

I purchased a black S/M pair of “3-Pack Effect Leggings” from Tight Tonic. The total price shown on the order page was approximately $39, and I confirmed and placed order number 42864 based on that amount.

However, when I checked my credit card transactions, I noticed that the pending charge dated August 26 was approximately $40. In other words, it appears that a higher amount was charged without my knowledge or authorization instead of the approximately $39 I had approved.

I only authorized the $39 purchase price, and I do not accept this additional charge. I request that the difference in the pending charge for order number 42864 be investigated and that the excess amount of approximately $1 be promptly refunded to my credit card.