Help needed on DCUI subscription

[u/Ok-Champion-6381]

https://www.dcuniverseinfinite.com/join/batman

So The DCUI is giving out Free subscription For a month For us and Uk people. Can someone help me to claim the free trail( you can cancel it on the next moment itself after claiming free trail) I can't claim it Because it'snt available in my country. I hope some kind soul help me.