the interview itself took place in a good and pleasant atmosphere. The next day they called me to tell me that they are happy to offer me a job and I've got an email with a job offer (the salary, holiday, etc). The following day I've received a contract and I realized that several things were missing in it (different level of remuneration than in the job offer). For that reason, I decided to ask the company to fill up the missing items and they agreed to do this. However, after two days (on Sunday, which is very unprofessional behavior) they just sent me a short message with the cancellation of a job offer without giving any reason. This isn't a serious company and I don't recommend them.