Very Urgent-Unmatched Tds Crefid , File rectification request

Dear Experts,

I filed my income tax return for A.Y 2018-19 as per 26AS, and I also received a refund, but it was not according to the filed ITR. According to Assessment Order 143 (1), the difference amount of tds was unmatched ,but it is still showing in my 26AS.

I filed a rectification request for unmatched Tax Credit on 3rd January, the 2019 but no reply has been received so far.

Could you please tell how much time will it take to credit the difference amount of unmatched credit in my bank account?

Thanks in Advance .