Mg University — convocation certificate not received

I have enrolled for mgu ba english lateral entry and have completed the course under enrollment no: mgu/141/sn1112068/168
Program: ba english
After completion i have applied for the convocation certificate on june 21 2018 with all the relvant documents mentioned as well and online payment of rs. 5000.00 in favour of mgu, tracking id:[protected], i have not got any information regarding the same. After many follow ups from my college ksbm i received an email from mgu as there are some pending documents to be submitted. I submitted all documents as required on oct 16 2018. No response regarding the status and yet i have not received my certificate. Also, no one is receiving my phone calls since last couple of weeks and not replying to email sent to [protected]@mgu. Edu.in as well. I am sending follow up asking if the provided documents are enough or not so that i can get my certificate to enrolled for my higher studies but at times they do not answer to my email. I am afraid that after waiting for a long time i should not receive email saying again the provided documents are incomplete (As received now after four months).
Feeling very unprofessional behaviour by keeping a student's career at stake..