Mathcad 14 License granted with ptc global support?

If I upgrade my web account to a global support agreement will a mathcad 14 license be issued using the https://support.ptc.com/appserver/lm/mathcad/call_logger/callLogger.jsp tool. I understand mathcad 14 and 15 are no longer supported however this tool mentioned above is still present and mentioned in forums. I just want to know if it still will grant licenses if I upgrade my account to global support. If it does how do I update/upgrade my account to this? Has anyone else done this? We have used the non prime version of mathcad(s) for decades at our structural firm with hundreds of mathcad spread sheets. I have tried the trial of the latest prime and the conversion of the sheets is worrisome. ebooks using roarks and young will also not work. Not to mention probably not backwards compatible if edited with a machine on prime, then trying to open on one of our other machines with Mathcad 14.