Inconsistent service delivery

I am writing to express my concern and dissatisfaction with the recent inconsistency in your service delivery regarding the reversal of a debit order. On the 7th of February, I sent an email requesting the reversal of a debit order that I had previously cancelled with your service. I am pleased to note that this reversal was promptly executed on the same day, demonstrating efficiency and reliability in handling my request. However, I regret to report that I encountered a significant issue with a similar request made yesterday. At precisely 08:45, I followed the same procedure to request the reversal of another debit order. To my dismay, as of this minute, the reversal has not been processed, and the funds have not been returned to my account. The reference number for this reversal request is C-***7. This inconsistency in your service delivery is creating uncer*****y and insecurity amongst your clients, including myself. As a customer, I rely on your promptness and reliability to manage my financial transactions effectively. The delay in processing my recent request has caused unnecessary inconvenience and concern. I kindly request that you look into this matter urgently and ensure the immediate reversal of the funds associated with reference number C-***7. Additionally, I would appreciate an explanation for this delay and measures that will be taken to prevent similar occurrences in the future. Thank you for your prompt attention to this matter. I look forward to your swift resolution and a return to the consistently reliable service that I have come to expect from your company.