The downgrade process is different depending on how you are paying for Pinecone.
It is important to start the downgrade process in the Pinecone console, as described below. When you do so, Pinecone checks that you are under the Starter plan quotas before allowing you to downgrade. In contrast, if you start the downgrade process in one of the cloud marketplaces, Pinecone cannot check that you are under these quotas before allowing you to downgrade. If you are over the quotas, Pinecone will deactivate your account, and you will need to contact support.
If you are paying with a credit card, downgrade as follows: