Question about automatic renewal and contract cancellation

I have already paid for the Monthly 3 EUR plan using my Mastercard. ( single payment )
The subscription is valid until 26/05/2026.

I would like to ask:
1. Will my credit card be automatically charged after 26/05/2026 if I do not cancel the plan?
2. In case the subscription is automatically renewed, if I cancel the contract afterwards, will I still be able to use the paid service until the end of the current billing period?

I would like to continue using your service, however I am concerned about payment security.
Therefore, I would prefer to cancel the automatic renewal in advance to avoid any unwanted charges.