Institution Of Engineers India [Iei] — non allotment of application number

I have submitted my application for senior technician on 26th july 2019 even after continuous follow up with finance and membership department no membership number is been allotted to me till date that is 4-2-2020 membership department fellow is so rude, when raised question about non performance asked to write to seniors no efforts have been made to resolve the issue from institutes end. They don't even entertain query mails from students