Airtel — Upc code not generating on Airtel Number

UPC CODE not generating on My Airtel number .
When I sent "PORT XXXXXXXXXX" to 1900 instead of getting UPC CODE Error Message is coming.
But your customer care executives are Telling Time and Date o[censored]PC CODE Request received By you. But I am getting Message like Below
UPC cannot be generated as there are subsisting contractual obligations with your service provider. Please contact your service provider for further assistance.

I am spoken many Times with your customer care executives They are simply skipping This much Trouble can not give to customer to port out from this Network.
If this is showing under LAPU na Kindly remove from LAPU Business line.
Kindly solve this issue as soon as possible to generate UPC CODE on My Number