Couldnt change machine types on codespaces

Hi, I am trying to change my current machine type on Github Codespaces and its apparently not showing me options for Basic or Premium machine. On some cases, I would like to conserve the compute resources by migrating to Basic, since I am simply editing and pushing code up. I attempted creating a new codespace, as the warning on github said, but to no avail. Even the new codespace simply stuck to Standard size when I really didnt need it. And at times when I need the Premium I am not able to scale up either.

Link with screenshots of the issue: Imgur: The magic of the Internet

PS: I am unable to post to codespaces beta section, even though i am a part of the beta.