Accidental purchase of a subscription

hello,

it depends on the subscription apple subscriptions offer a free trial from 1-3 months depending on the service if you are in the free trial period you will not be charged, if it is not an apple subscription that has been made through iTunes please contact apple support

ray41 wrote:

My finger hit a subscription tab Andy I ended up buying a subscription have been canceled a refund returned?

You can request a refund using the directions here:

Request a refund for apps or content that you bought from Apple - Apple Support

Note that Apple is not obligated to give you one.