IDFC — Regarding Amazon pay later

My last month due is on or b4 August 5 have to pay .. i paid on August 2 2707 amount bt 1493 is only confirmed 1214 is still not in daily getting call from idfc and I'm explaning them they are telling it will updated u soon and getting daily 4 to 5 calls ... Now they blocked my Amazon pay later ... And today morning got a call from idfc customer service they behave disrespectful to me and forcing me to pay next month bill today itself they are not understanding the issue I asked to Amazon customer service they said u have to only in September 5 ... Bt idfc customer service the girl who called me treated me like I'm the one who stole all the money from there bank ... It's very cheap thing from idfc ...