If you used your card and the transaction is showing a higher amount than you expected, but it's still in the authorized state, don't worry.
That is a very common risk management tactic businesses with prepaid cards. Essentially, they want to make sure that you have money on this card to cover future purchases.
Sometimes they will put an authorization that's higher than your charge amount and then they will sell the transaction down to the correct amount. For example, Uber Cash will authorize an an amount 20% above what you entered, and then settles the transaction at the correct value.
Other businesses may open up two authorizations (what looks like charging you double) and then immediately drop one of the authorizations.
Ss long as your transaction is showing that it's still in the authorized state, don't worry about it.
However, if you have been charged more than you expected and the transaction is now settled, please contact us via chat at the bottom right of the website.