Incorrect credit score

Their App has an incorrect credit score. I was told to contact Experian so that they can send the bank my correct information. The bureau said they can't help as the bank has a system that they use to retrieve my report. Thats how i know it as well. Now im speaking to someone on Messenger who makes it seem like im speaking a foreign language. All i need is the app to reflect the credit score . Thats all!