@Cyndi31 Hi, You are probably contacting the wrong company.
We are Windy.com (with a red logo), and our subscription is called Windy Premium, not “Windy PRO.”
Our Premium service costs €18.99 (or equivalent price in local currency) and we don't offer any trial. However, if you purchase the subscription in AppStore, you still need to request the refund from them, since they don't allow companies to manage their purchases.
These are our official apps:
Android
iOS