Hi @6329926 , we have located an account using your community details. Upon checking, the change of plan has been completed.
If you are still having issues, we've created some articles that will help you troubleshoot the Slow speed issue.
If you are using a WIFI connection, then you may check these links to improve your home network.
If you need further assistance, please send us a private message with your best contact number and most convenient time to receive a call for further troubleshooting.
To send a PM, please refer to this link: How do I private message (PM) in the community