It had me stumped for a while, trying to find the correct braille translator.
I got the lower case first, which lead to the cashu* clue, then the upper case, and finally the numbers, which lead me to https://en.m.wikipedia.org/w/index.php?title=Gardner%E2%80%93Salinas_braille_codes
I was cursing not having my laptop with me, do I had to do it all on my phone.