T-Mobile TMobile Unethical billing Internet, Internet

Cancelled service with TMobile.  I had an agreement for a Corporate discount for many years.  Noticed my final bill did not have the corporate discount applied.  I spoke to a rep as well as a supervisor and both replied that the corporate discount is not applied towards the last bill.  I asked where this is documented in the term and conditions and they said this was not.  Tmobile can verbally change or decide on when to change terms as this is a courtesy they offer to companies.  It's poor business and service to communicate that this is how they handle business and furthermore unethical.  It's ashamed this company does business this way.