Incorrect details email

I have placed a few orders online n had no problems. Yesterday I placed another order online n paid for..n received no Confirmation. My alleged confirmation was sent to a inactive closed account. I called customer service to no joy.i went on app n can't change my email. my email has always been @ gmail.they sent to hotmail🙃😢😌I further sent emails to customer service no response. Clicks I want my paid in full purchase asap..n please fix your updating details app.thankd