Unfreeze my bank account as my business is suffering

I am writing to urgently request the unfreezing of my company's account, due to an alleged miscommunication with our supplier. Our lead times are within the agreed-upon parameters, and we promptly reimbursed the client upon cancellation.

The account freeze has paralyzed our operations, and I kindly ask for your immediate intervention to expedite the unfreezing process. As a loyal client for the past five years, I seek your guidance on any required proofs or additional documents for a swift resolution.