Yes, you can use an iPhone wallet case with a wireless charger.
We have tested JIMMYCASE iPhone wallet cases with a variety of wireless chargers and they work well. As the credit cards add extra material between the back of the iPhone and the charger, there are some adjustments to make.
We've been using wireless chargers with JIMMYCASE wallet cases for years and have had no problem with our credit cards. However, phone hardware manufacturers do recommend you keep magnetic stripe cards away from wireless chargers.
Samsung Website: "please ensure that any magnetic cards have been removed from the case to avoid any damage to your magnetic cards."
Photo: ANKER Wireless Charging 101
Yootech Wireless Charger, Qi-Certified 10W Max Fast Wirless Charging Pad