I'm not clear on what you're asking. Are you looking to set up an internet connection for only a single month? If so this Roku forum would not seem to be a good place to get help. I'd suggest doing a web search for internet providers in your location of interest and start contacting them.
Roku Community Streaming Expert
I am not a Roku employee, only a user like you. Do not ask me support questions via private message -- post them publicly to the Community where others may benefit as well.
If this post solves your problem please help others find this answer by clicking "Accept as Solution.". Please only do this if it ACTUALLY solves your problem.
Streaming Stick 4K+ 3821 | Streaming Stick+ 3810 | TCL Roku TV 43S245/C107X | Streaming Stick 3600