Hello,
If you have a personal account with the Business Pro plan, you should be able to send envelopes, to add your signature you will need to add yourself as a signer to the envelope.
However, if you are in a company account with a Business Pro plan, meaning that someone invited you to their account, you will need to confirm with them, that you were granted Sender permission, to send an envelope.
I recommend opening a case with DocuSign support and confirming the account set up with the support agent because it contains private information that cannot be disclosed in this public forum.
Let us know if you need further assistance with this.
Best regards,
Christopher | DocuSign Community Moderator
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