India post speed post services
Late receiving of lette

I received an interview call letter via ems speed post no. EU 92691429 1IN on 14.07.10 issued on 30.06.2010 from Registrar, C.S.M. Medical University, Lucknow, whwreas it was scheduled to be held on 13.07.10. while tracking its delivery date, its written back that sorry there is no recordes available.kindly let me know it was late psoted by the sender's office or its a fault of india post ems speed post service. i lost an opportunity.