[Plugsurfing] Charge Card selected - no prices

I have selected Plugsurfing in Charge Cards. “Plan a route preferring chargers that are supported by my cards” is selected. After calculating a plan I select a charging stop (charger). Example Ionity: Pricing → Your charge cards activated →it only shows Default price €0.75/kWh. After deactivating “Your charge cards” i see Plugsurfing in the list with €0.70/kWh. Is it a bug? I am planning a trip to France and want to use my prepaid balance on the Plugsurfing card.