Dont get a Builders Warehouse / Builders Express Card

As I didn't see any benefit from having a Builders Warehouse / Builders Express card, I called the call center to cancel my card. 3 months has gone by, and the card has not been cancelled. I called again this morning (1 Dec 2023) and requested a cancellation once again. The consultant advised that the cancellation would take a while and couldn't provide me with an exact date when the card will be cancelled. I then asked for an email to confirm that my cancellation request has been acknowledged. She advised that she could not provide such an email. I then asked to speak to the manager in charge. She advised that the manager said the same ie: they cannot provide me with an email to confirm my request. So, at this point I have no proof that I requested the cancellation and could potentially go in an endless loop to try and get this cancelled. If there is anyone from the Builders Warehouse / Builders Express management team reading this note - please help as i dont believe that my ask is a difficult one ie: send me a mail to acknowledge my ask to cancel the card and to provide an estimated date when the card will be deactivated. Please HELP!