A small hint to all of you LCL bank customers in France who have subscribed to Zwift using their payment card (LCL Visa CB, that is) :
Even though the 14,99 amount is indeed in Euros already, LCL keeps applying a 2,00 Euros change fee on the basis (they told me) that Zwift, Inc. as a merchant site is based in the USA.
As a result, you may notice a 16,99 Euros payment where you rightfully expected 14,99
It seems to be specific to LCL and dates back to at least 2019 as testified by the only other trace of this issue I’ve found on another forum:
" Depuis la hausse de tarif de Zwift, et afin justement d’éviter ces frais de change, j’ai décidé de changer de devise et de choisir le paiement en euros qui est à présent proposé par Zwift.
Surprise ! ma banque (LCL) me dit que cela ne change rien et me prélève donc depuis décembre dernier 2 euros de frais de commission en plus de mon abonnement de 14,99 euros "
The above exchange suggests a simple workaround consists in paying through Paypal; I’ll be happy to feedback whether it works or not… at the end of April 
En attendant, sweat well / suez bien
BL aka ZT