Could you help me solve this?

[Bros10]

So I'm doing some questions for a school task and we are given this information.
"Sometimes hackers appear in the most unlikely of places. Our team recently uncovered a hacker who was running a coffee shop as a cover for his secret identity. He hacked the cash register to show secret messages to particular customers. We knew it used some kind of cipher to hide them. Take a look at the example receipt below - can you find the hidden message?"

Then this is the ciper

"Crypto Coffee
Brew Street, Copenhagen
Qu. Reference Name Amount
2 rcuuyqtfku Americano EUR 4.00
3 dphulfdqr Croissant EUR 2.25
Total: EUR 6.25"

[writeon]

"It is not worth an intelligent man's time to be in the majority. By definition, there are already enough people to do that."
— G. H. Hardy

JD_1947 on 2014-11-24 03:54:19
. . the 'herd instinct' . . the majority of people seem to follow the herd . . I'm not one of those . . .

susanith on 2016-10-13 18:11:05
I also do not understand the impulse to follow the crowd.

marmot on 2017-08-31 08:59:10
I agree with all of you.