Zest Money — Processing fees charged

I kajal gupta paid on goibibo through zest mony and selected 3 emi option and there is offer of zero cost emi paying though zest money on goibibo screen aatached but 1632.70 is charged on emi as processing fees i am not going to pay this processing fees as it is cleary written on zest app that zero processing fees paying through zest money so how they charged processing fees
all screenshots as proofs attached
and also it is written on zest money app pay in 3 at zero cost
my mail id is - kajal.[protected]@gmail.Com