BMO Harris Bank

We have been trying since prior to 01/11/17 to close an account with BMO Harris. Was told documents couldn't be emailed and had to be mailed. Sent another msg requesting docs be mailed. Sent another msg via their website on 1/25/17 that we needed the documents as we hadn't received them. Their response was we needed to verify the address (which they have already). Verified address. Received msg 2/6/17 that the docs could be emailed. Received msg on 2/10/17 that docs would be emailed within 1 - 2 business days. Sent another msg 2/15/17 that we had not received the documents. Received msg 2/15/17 that the request to MAIL the documents had been sent and another msg stating they had been EMAILED. Spoke to ANOTHER rep last night and was told the signature card had been mailed 2/14/17 after receiving the request 2/10/17. Asked to speak to a supervisor and was told one was not available and one would call back within FOURTY EIGHT hours. This is the poorest excuse for customer service I have EVER seen and this is the 1st of many complaints I intend to file...next up is the Federal Reserve