Sigma Courier — bad service to customer by sigma courier

Address:

Mumbai City, Maharashtra

Hi

I'm supposed to received a package sent from ICICI bank,MUMBAI which was handed over to Sigma courier and I got the confirmation from the ICICI bank that it has been dispatched to my address on 05.07.2012.the tracking number is LT[protected] . I followed with the Sigma courier people and I did not get the good reply always they take my number and say our people will cal you back, sometime they keep my call on hold.since from last 4 to 5 day i m daily trying to contact them but no response. Is this the way the courier services work.As per my knowledge even normal post will reach in 3 days time to destination. As I needed the package sent by ICICI immediately it is causing unnecessary tensions and need to follow-up with them for the status

Thanks & Regards,
sahalam