i think
Jocelyn84 is right
i think fraud would be someone using a citi member id to obtain the tp2 at that price but because sprint site does not ask you to verify that you work for the company and the contract does not ask you to to agree that you are a member then i dont see sprint having a strong case against this issue.
now based on the moral issue, this is morally wrong.. but (my opinion) corporate America is the last place to look for any moral values in corporations.
they can probably move you from the business account if u cant verify that you work at the company, but i think because the receipt doesnt say its a business account, i think u have a strong arguement to be able to still keep the discount price while being off the business account.