smtpserver

I have refunded my order on Amazon.co.uk and received a confirmation email with the following subject line: "Important Information about your Amazon.co.uk Order #205-[redacted]-[redacted]q ahorita estoy q me quedo dormido escribiendo o en meido proceso de lo cansado q estoy"

At the end of the message they write that "Please note: this is an auto generated e-mail and we cannot read your answers reply."

So how did this funny subject line get there?

I have found a thread about medical AI/ML on HackerNews and someone posted a link to a medical symptom site which looked quite professional (similar to symcat) with very functional design and there was incredibly many options to enter (even lab test result eg. low iron in serum etc.) I visited this site on my tablet and left it open in a tab - unfortunately my device had been stolen and sync was off. This was between Jan-Jun this year. I have tried google-fu and hackernews search to no avail. Can someone help?