Issue with F5 VE license

Hello F5 Experts,

I have downloaded F5 VE license for to practice F5 stuff in GNS

it was my day 1, when I started practising lab in GNS, I completed few labs, saved everything and powered off my laptop after closing GNS3

next day, I started my same lab but when I powered on F5 in GNS3, it started asking to license the device again, I used the same registration key to create Dossier  but now it says already this key has been used to activate license on F5 license server

could you guys please help what I can do next, 

I have 29 days available for my trial license but cannot use it anymore

have also tried to create a ticket with F5 support team but when I write last 7 alphabets of my trial registration key, it says out of support

can anybody please help me over here please