I was also contact by Aspen Merger Corporation in October 2023. They wanted to purchase my "58.000 shares of the common stock of Childcare International Inc."
They wanted me to fill in banking information and return an agreement. I have not done that.
I have sent emails to their admin@aspenmergercorp.com asking for information about the shares, but no answer on email.
They keep calling me every week, and I do not answer the call.

Just another scam, I think.

Thanks for your reply. At least I'm not alone. I've gone along with it to see where it went. They tell me that others have had their restrictions lifted and been paid. Are there any of them on this site? I was directed to the Hang Seng Small Cap Index Exchange. I need to check if that actually exists, but they sent me a copy of my shares certificate, restricted. It looks genuine.
Squared Financial Singapore have "identified" a bank in Asia that will lift the restriction at a cost of 0.09us cents per share. Total 5200 USD. I think this is the actual scam.