Bharat Sanchar Nigam [BSNL] — unable to send port out request from bsnl

Address:

29/7"bharghava Krupa" next to bma c, 560037

I have been trying to send the port message to 1900 but it says failed every time, bsnl customer care also doesn't pick up the call. I have been trying to reach them or try messaging but no avail. I have called the office and even the landline centre (They pick up only on this number) but they all me to call 1503 and no one picks up the call even if i am online for 15 mins. I request the upc code because i am having terrible service and call drops and i can't live with this, i want to port out.