If you are a seller in your own name and do not offer subscriptions, you have the option to adjust the header of your membership and your shop accordingly so that your customers do not see the option "Cancel subscription" in the upper right corner of the header.
The link to "Unsubscribe" is shown in the header by default unless you manually hide it. If you sell in the >> reseller model, you do not have the option to make this adjustment to the header of your membership or shop.
Shop header: Go to "Themes" and ">>Shop Themes" and edit the corresponding theme by clicking on the pencil icon. Under "Header" you can adjust the header by clicking on the editing pencil here as well. In the "My Account" section, you will find the option to hide the "Cancel subscription" option for users.
Membership header: Go to "Themes" and edit the desired >> membership theme by clicking on "..." and the pencil icon. Edit the header area and deselect the "Show unsubscribe" option for the "My Account" section.
Really only disable this option if you don't offer any subscription products. Legally, as a seller in your own name, you are obliged to display the >> option to cancel a subscription on the same page where a purchase with subscription payment was completed.