Terrible service

I was told numerous times my bill would be lowered and the difference would be refunded for the over charge. 3 months I've had to reach back out to have this fixed. The live agents told .e they would change it twice on the third time they did put me into a new contract but they refund I was confirmed to get never ca.e threw for the third time. Speaking to a  live human was wildly difficult and they had no answer. When I spoke to the next person he spoke over me until I refused to stop speaking until he let me speak. When I finished there was enough silence where I thought I was muted and he still refused to uphold what I was told 3 months ago, 2 months ago and one month ago. If you have it in the live chat that is not a "paper trail" or agreement to them and they will not uphold it.