MRK Management Consultants interview questions

The whole process was a really terrible experience with this company. I applied for the position of Junior Consultant, they didn't give me a job interview, but wrote me that they could only offer a two months' internship if I'm interested. I replied yes. Then they gave me a call, told me that they need a job interview in Munich for the two months' internship, I said no problem although I live in Hamburg. We have agreed upon an appointment, then they said they will not pay for my travel costs and so on. I replied again that's not a problem. After the call, I booked train tickets and accommodation. But only 3 days before I go, they wrote me an E-mail that my job interview is canceled since they have already another "Zusammenarbeit". I can't get the refund of train tickets and paid it for nothing, the company didn't even feel sorry about it. As far as I'm concerned, the company is cheap and not trustworthy.