You do not give enough facts to be able to tell if the discrimination was illegal or not. Banks are in the business of discriminating, they just cannot do it on an illegal basis ( race, sex, religion, national origin, age, etc) . You must also prove this is the "real reason" the bank did not want to do business with you rather than the fact they did not understand your business or thought you had not been in business long enough for them to open an account. If you think you have been discriminated against on one of the prohibited reasons above, I would suggest you use the find a lawyer tab above to locate an attorney in your area. There are several attorneys who offer free initial consultations who will explain your legal rights. Good Luck.
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A bank has no requirement to deal with any particular business, unless it is for an illegal reason.
And granting credit to a new business as itself, rather than to the owner, is *extremely* unlikely.