TCS not paid by supplier

Suryadeep Pathak (CA Final) (43 Points)

07 September 2019  
I have a client having beer shop. Supplier of the client has collected the TCS but it is not showing in 26AS , so either supplier has not deposited it or not filed TCS return. Since Supplier is not responding, So How we can claim the TCS that is not showing our 26AS.