Bharat Sanchar Nigam [BSNL] — rent is due from may 2018

Dear sir in my house there is a bsnl tower at 98bkpaul avenue kolkata -700005 [protected]whos side id 444 vender code 5055726 and con no[protected]. Not getting rent month by month, before you are sending the rent with month but now a days you are sending the rent no month, i gave you for the rent but which not getting properly. I am senior man please enqure the matter and try to solve it.[protected].