B.S.N.L. — For porting of bsnl number ,UPC code was not received

I was SMS TO 1900: PORT MY MOBILE NUMBER, But I received sms
1. Your Request for UPC has been delayed. Please wait while your request is being processed.

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2. Request for UPC for your mobile number could not be processed Please retry after some time.

I was tried nearly 6 to more times, but i was not received UPC code