Lying customer service

I am posting here to express my frustration regarding a recent issue with Xfinity customer service and the mishandling of my account.

Two months ago, I temporarily added the Unlimited Data option to my internet plan due to a large amount of data required for reinstalling my computer system. Now that I no longer need unlimited data, I contacted customer support to remove it and return to my previous plan.

However, I encountered multiple problems during this process:

1. Rental Discount Not Honored:
   I had a $15/month discount for renting a device under my old plan, which is still valid for several more months. When attempting to switch back to a standard plan, multiple online agents refused to apply this discount to the new plan, insisting that I would now have to pay the full $15/month rental fee. This is unacceptable, as the discount was clearly still active and should carry over.

2. Misleading and Dishonest Support:
   One agent attempted to pressure me into approving the new plan by offering a manual $15/month credit after the change — which I declined, as this is not a guaranteed or long-term solution. I simply want the valid discount I am already entitled to.

   Another agent falsely claimed that she had already canceled the Unlimited Data on her side, even though I had not agreed to any new plan and had not received any confirmation email. When I questioned this, she continued to mislead me, saying it would “take time.”

This kind of customer service — full of inconsistency, deception, and refusal to honor existing discounts — is extremely disappointing and unacceptable.

I have request the chat id but I don't know if the agent lied to me about this as well.