This is due to the name of your Stripe account. If you input your website address as a social media platform Stripe default the business name to the platform. This is easily changed.
Log in at Stripe.com/login.
Where you see the incorrect business name at the top left of the side bar click the downward chevron icon next to it and then Edit.
Amend and Save the account name.
If in fact it is the name on confirmation Notifications you wish to change, this is changed in the Gymcatch Business Portal on the BUSINESS DETAILS page.
You may also be interested in:
Can I change my business name?