Refund/Credit of Equalization Levy

Hi All,
I have a query w.r.t credit of Equalization Levy deducted by the company.

On the basis of provisions of Equalization Levy, we have deducted the amount equivalent to 6% while making payments to the foreign vendor. How can foreign vendor claim credit or refund of EL in it's own country because there is provision of issuing withholding tax certificate unlike in TDS.
Appreciate your early response