Employee's Providents Fund Organisation [EPFO] — pension contribution has not been refunded fully

Address:

Loknathpuram, Chhatarpur, Chhatarpur, Madhya Pradesh, 471001

Hello sir, this is vikas soni and my uan is[protected] and my member id is mpsgr[protected], i had claimed for my epf for fully refund where my employee/employer share has been refunded but my pension contribution which is rs 14667/-, only rs 5492/- has been refunded. I called many times in epfo sagar mp on their landline number but they have given no any response.
Sir now i'm not clear to understand that why they have not provided me my full refund of my pension contribution. Please help me.. To provide my remaining contribution which is rs 9175/-