Tekion Data Engineer interview questions

I got call from the recruiter for the Opening in Tekion and process took approximate 2 Months. Then Process started with first round was Telephonic Interview and after a week they called me at Chennai location for the face to face discussions. On the day, they took 3 rounds to technical discussion including coding round. After 2 weeks they confirmed That I have cleared the technical discussions and few more technical round are still needs to give. Again 3 rounds of Zoom discussion happened including one manager discussion. After one week I got confirmation that I have cleared all the rounds and I will be getting offer letter within a 3 days. I didn't receive any update for 3 weeks and when I followed up with them, they confirmed that The position is currently on hold and they can't release offer letter now. Means after taking 7 rounds of interview , then they got to know about the position is on hold. It was total wastage of time for both of us.