Upgraded but some surveys are still locked

I sent out a survey to ~250 people, and expected to receive <100 responses. I have received more than 130 so far. I started with the free subscription but upgraded to the Basic subscription which should allow me 500 responses/month. However, the responses above the free 100 responses remained locked. What am I missing? Thanks in advance for your help.
my email related to the issue: a.ismail@sarkhoo-hajj.com
URGENT please

Hi Ismail,

Welcome to the SurveySparrow community :grinning:

We are excited to have you on board!

I am writing to inform you that I have unlocked the responses for your SurveySparrow account. Please accept my apologies for any inconvenience caused due to the temporary lock on your responses.

You can now access the submissions for your survey by simply reloading the "Responses" tab on your account. If you encounter any issues, please do not hesitate to contact me. I am more than happy to provide you with any assistance you need.

Thank you for being a part of the SurveySparrow community. We value your feedback and appreciate your contribution to our platform. If you have any further queries or concerns, don't hesitate to contact me.

Thank you for choosing SurveySparrow!