Vi — Vodafone India Not able to send sms for porting in., 1900

Dear Sir,

iam not satisfy with your Internet Network
Coverage n Data Packs...Hence, i thought to move to Jio...then i have started
to send SMS to 1900 for Porting...
but, iam not able to send only for 1900... "message Could not sent" is showing...tried 10 time...
by speking to Custmer care for solution...they can't help