EMAILS NOT RECEIVED!

I am not receiving emails from a website I advertise on via their forms. They insist the emails have been sent and I have no way of knowing. There are many requests for information potential customers have supposedly sent me but I have NOT received them in my inbox. Also I am not able to receive password reset requests via email from this same website. This is CRUCIAL! Also I've been with HOMESTEAD many years and the Support system is NOT good anymore. Offshore chat with relatively inexperienced staff that keep attending other queries is really disappointing. I am considering leaving.