Mastercard Fullstack Developer interview questions

The ridiculous interview process I have ever seen. They took 3 months to complete the process. I had applied on their site and the HR called me to inform me that my resume has been shortlisted. They took 1 month to schedule my first round. After 15 days they informed me that I cleared my 1st round and they scheduled my second round which got rescheduled 4 times due to panel unavailability. Then they asked me to share my documents. After few days they called me and said you have been selected but the manager wants to have a word which got rescheduled twice. After that they said HR will call you for the final discussion but he never called. They wasted 3 months of my effort and time . Please be little serious about the process because you are playing with somebody's career.