Many thanks for your response.
When I visit Windy.com on my new phone I am not presented with a "Log In" option, I am however given the option to "Restore Purchases" as the only option.
Of course, as it has never been loaded on this platform, how can it be restored? Nevertheless, when trying the "Restore" option it informs me that there are no purchases to restore, thus confirming my view above? It further adds; "Make sure you are trying to restore your purchases on a device with the same Apple account you purchased your subscription with." As I have restored my new phone to the back-up settings from the original handset, (hence the same Apple account), which is now defective, where do go from here?
Perhaps you might furnish me with the route to access the "log-In" window please so that I may further advance my ambition?