There is a difference in tense.
"You won't be receiving the money." is future continuous tense.
"You won't receive the money." is future simple tense.
These are very similar statements but the first (future continuous) suggests that the payment or payments would have occurred in the future at and/or over some unspecified time period, while the second (future simple) suggests a specific point in the future when payment would have occurred.
Student or Learner