The community will undergo maintenance on October 16th at 10:00 PM PDT and will be unavailable for up to one hour.
You have posted a question to the user community who have no ability to create a new license for you.
You need to go to the License Management portion of PTC.com and enter your request there. If this is for a student license, there is another location, but I do not know that one as I do not use student editions.
Transferring Mathcad License from Existing Host ID to New Host ID