I have a small problem with a supermarket (I won't name the supermarket) that I was hoping to get resolved via a quick email. Last time I had a problem was about 5 years ago and I emailed them and the problem was resolved quickly and efficiently.
However, now, aside from using social media which I don't have, the only options for contacting their customer service are by phone, or a sign language video chat. I have trouble using the phone and I don't know sign language.

They obviously are mindful of accessibility as they have added the sign language option to be accessible to deaf people but they have not considered that there are people who are unable to use the phone for other reasons. I am one of those people.
I am a bit upset and am thinking of writing a letter to them about this however I don't want to be a "snowflake" because I am the first to criticise people who claim to be offended by stupid things like Poppy Day or Fireman Sam so I don't want want to be a hypocrite! However, I genuinely feel that I have been excluded from accessing customer service because of my issues.
I am wondering what people think. Am I getting upset over something stupid or is this a valid concern that I need to raise so that people like me have access to customer service?