Horrible customer service

I recently (September 2025) booked at the hotel and requested for an invoice upon checkout, however, I was told I can get it through email. I have reached out to them via email to request for the invoice and my emails are read without any response - it has been weeks without any assistance/response. I called the hotel a day ago asking to talk to the general manager and was told he will contact me back, sadly I am still waiting for the call. I need the invoice for accounting purposes but clearly my simple request is falling on deaf ears. I am extremely disappointed by their customer service!!!