psn renewal unwanted

You're unlikely to get the money back, the onus is on you to cancel.

You don't say why you couldn't access your account.

To cancel a subscription

PS4 - https://www.playstation.com/en-gb/get-help/help-library/store---transactions/payments---refunds/how-to-cancel-a-service-subscription-using-playstation-4/

PlayStation App or web browser - https://www.playstation.com/en-gb/get-help/help-library/store---transactions/payments---refunds/how-to-cancel-a-service-subscription-using-playstation-app/

PS TV - https://www.playstation.com/en-gb/get-help/help-library/store---transactions/payments---refunds/how-to-cancel-a-service-subscription-using-ps-tv/

PS Vita - https://www.playstation.com/en-gb/get-help/help-library/store---transactions/payments---refunds/how-to-cancel-a-service-subscription-using-ps-vita/

PS3 - https://www.playstation.com/en-gb/get-help/help-library/store---transactions/payments---refunds/how-to-cancel-a-service-subscription-using-playstation-3/