Penumbra interview questions

I got an email from the recruiter after my online application to schedule a telephonic interview. There was no communication for one month after the first email. Then got another email and the finally the interview was scheduled. The first round was two telephonic interviews back to back with two different people from the marketing team. Both of them sounded really impressed with my experience. The recruiter wanted me to travel to Paris to meet the people from Marketing, Sales, and Strategy teams and have a discussion with them. I happily agreed and travelled to Paris for the interview as this opportunity was suiting my profile and interests. I finished three rounds of the interview back to back on the same day and all of them sounded excited after the conversation. They asked me to wait for another week and I would get the clear picture about their decision. Once I returned to my place, I shared the invoices of my flight tickets, accommodation and food for reimbursement. They took more than a month to reimburse the money even after notifying them few times. After two months finally, the HR said the recruitment is put on hold and they would call me once they start hiring again for the final round of interview. It's been more than 4 months now and still, I have not heard anything from the recruiter. I gave my best and ended up wasting a lot of time and money on this recruitment process. I wouldn't join this company even if they offer me a better job now. Very disappointed with the recruitment process.