Vox Telecom LTE ripoff.

I recently subscribed toa Vox LTE 50mbps Uncapped LTE month to month contract. This product was advertised a 1000GB FUP but I reached a 450GB I was throttled to 1mbps. I have tried countless times to phone them, spending more than 100 minutes waiting online, being transfered back to the pick system on their phone system, being cutoff, no one answering even though there were no waiting calls before mine. The times I did get through they all gave excuses that that is the way the system works. I believe this is false advertising. I have a screen grab of the info telling me I have 1000GB at full speed, 400GB at 10mbps and then 1mbps for he remainder of the month. I have only reached about 465GB and have been throttled to 1mbps.