Nexa — registration amount

Hi sir i purchase baleno delta on 23 feb 18 from ifco chowk gurgaon show room. My tem reg no. Was hr 26 temp 12957 and reg no. Is up 14 dn 7757. I paid rs 48500 + 5000 for registration of my vehicle. However a receipt of only 46559 has only fwd to me. An amt 5000 was in cash was paid to me shambo saying that kvp of same amt is required for registration from up. I received the rc but when i asked about the kvp or 5000 amt he not giving any response after repeated call and messages. It near 10 days and cat and mouse game is on. Therefore i want that full details of amount spent on rc and what about kvp if purchased then certificate or else refund the all unspent amount. Please accord priority it already too late