There is nothing to worry about as these pre-authorizations are a standard part of our payment process : they help to ensure sufficient funds are available for your ride.
Our process involves a temporary reservation of a specific amount. If the actual cost of your completed ride is inferior to the reserved amount, the difference will be released after a couple of hours or business days (depending on your bank’s processes).

There are two types of  pre-authorizations : 

1) Fixed Pre-Authorization:

For kick-scooters and e-bikes there is a fixed amount set to 5€ while for shared cars 20€ will be reserved on your card.

2) Variable Pre-Authorization:

For taxis, the reserved amount will be the  estimated cost for your ride, plus 20%.
The additional reservation of 20% will not be inferior to 5€.