Poor Service!

Hi I settled my account end of January 2025 and to date they don’t want to send the settlement letter. I called the call center numerous times, used the what’s up chat and even send and email to one of the manager Raymond Yarrow and still no response. I need that settlement letter sent to me urgently- don’t know how to ask now. I struggle with no service while the account was still active now even worse now that the account is settled. Why is it soo difficult for Nimble to improve on customer service? What joy do you really get from not offering clients the service they deserve?