Delhi Development Authority (DDA) — Your allotment has been cancelled. Please contact concern person of Housing Department

Address: New Delhi, Delhi

My name is Renu .My application no is 1181390. I have allotted a falt in rohini sec-35 in dda housing scheme 2014. I have paid the complete payement by sbi bank, same has been updated in dda records.i have checked by online by username and password. But today I login by username and password below message is showing I am shock to see this message "Your allotment has been cancelled. Please contact concern person of Housing Department" is this a technical problem or what is this? Regards renu [protected]