Bharat Sanchar Nigam [BSNL] — I want to PORT to another network buy UPC code not receiving

Address:

State:andhrapradesh,city:vijayawada,area:chittinagar,locality:frizerpeta,street:mekkala rammanayya street

Respected madam/sir
Im from vijayawada, Andhra pradesh
In my area network is very slow
And getting 2g data
Im a student
I want to study only classes
Im suffering from bsnl network
So i want to change my sim to another network
So i sended so many times PORTmobilenumber to 1900
But UPC code not recieving
Please try to understand my problem
Please send me UPC code
I need very very urgent

Thank you.