Airtel — postpaid - not allowing porting

Address:

Hyderabad, Andhra Pradesh, 500072

4g data problem in my airtel post paid conn is not working from past 3 days and it is not resolved even i complained 3 times, finally i decided porting to jio and my mobile operator is not allowing porting, i am trying from past 2 days and complained today but no resolution provided yet. Issue is as below when i am trying ti port it to other network. It seems system is blocking the porting.

Error: due to system issue we are unable to generate the upc code at present, please try after some time.