Sorry it took so long to respond. Thank you for your introduction. Since you've gone over the rules already, I've tried to add jimmeny17 to the whitelist. Unfortunately, I am unable to add that username. There are a couple reasons why this might be the case. First off, there could be a typo with the username, if you could re-verify the username for us. Secondly, this server runs the Minecraft Java Edition. It's not compatible with other platforms like Portable Edition, or The Win 10 Bedrock Edition.
Once you get back to us here with any extra information, we should be able to get you right into the server.
-Have a good one.
-Indiesquish Admin Team