I'm a DearU bubble user, but I deleted my Lysn account.

If you delete your account from the Lysn service, please note that all information, such as personal information, conversation history, and subscription dates, will be deleted and the deleted information cannot be restored.
When you delete your Lysn account, your personal information will be deleted and you will no longer be able to use the service you paid for.

Suspension of the subscription is different from deleting the account and it can be done through the payment platform you have used. 
Please contact customer service of the relevant payment platform for inquiries.
[Google Play Store] https://support.google.com/googleplay
[App Store] https://support.apple.com/choose-country-region