If your Cash App has a negative balance, you can delete your Cash App account. Paying dues and pending payments on the Cash App. Square Inc. may take legal action against you if you fail to pay dues and pending obligations to Cash App. It is in your most beneficial interest to cooperate with the Cash App customer service team. If you think your Cash App balance is negative due to any authorized charges, please feel free to contact us. Otherwise, consider adding money to your Cash App account to fix the negative balance.