Zion Technologies — no service provided by zion

Address:

Delhi, New Delhi, Delhi

I had given them my ipad air 2 on 24/12/2019 with challan /job sheet no. 14015 as it was not turning on and was showing error 4005 in itunes and was having some mother board problem as told by zion technologies.
I had talked to mr. Vikas telephonically regarding this and he gave me an estimate of rs. 5500/= which i agreed and submitted my ipad to them.
Mr. Ashish later gave me an estimate of rs.8000/= which was also agreed by me and he also informed me that there are great possibilities that it would be repaired by them within 2-3 days time.
Whenever, i contacted them to know the progress of repair, mr. Sarvesh told me that they need more and more time.
Mr. Ashish lied to me that he had opened the ipad and is unable to diagnose the motherboard problem. After more than a week, he told me that this device cannot be repaired by them and asked me to collect it back.
At the time of collection on 02/01/2020, they told me that they have not even opened the ipad to diagnose the problem and wasted a full week by keeping it with them and were giving false promises to the customer for reasons best known to them.
Mr. Ashish and mr. Sarvesh were giving baseless excuses that they were unable to repair it as the undersigned was contacting them on a regular basis to know the status of the repair. Isn’t it the responsibility of the customer to know the repair status if zion technologies is unwilling to provide the information themselves?
They were giving false hopes and excuses as they had not even tried to open the ipad and diagnose the motherboard problem and if it was not repairable or diagnosable they could have denied to take the device or could have returned me back the next day. Then why keeping it for more than a week?
This would only be removed by the undersigned if zion technologies is able to provide with some resolution on the above matter.