HDFC Bank — Welcome kit returned still now not got welcome kit

Its been 2 weeks i didn't receive my welcome kit and i have visited nearest branch they said my welcome kit has been returned but it will come eventually. What kind of service is this that hdfc is providing? I don't know what next to do already i have visited the nearest branch for two days they are not at all helping. My account will get blocked . I can't receive my salary then what to do ? What kind of service is this ? The delivery person didn't make any call and simply message comes from hdfc that my welcome kit has been returned. Why hdfc people are making us suffer like this?