Applying for new car loan at HDFC - Horrible service

I have applied for car loan at HDFC bank last week and they told me my application is pre-approved and I can get the loan in 3 days. I already have a salaried account with the bank along with a credit card.

No documents have been collected from my side except PAN Card and a photograph and till now my application has not been approved and its under processing and whenever I call their customer care, they give me the resposne, its under processing, please wait.

This is the most horrible experience that I had with HDFC bank, they made false promises which they cant stick upto and dont give reasonable answer when someone tries to contact them. I dont understand what verification they are doing when I didnt even submitted any document to them and I already have a salary account with them along with credit card.
Due to their poor customer service, I am unable to get the delivery of my car. I would have applied to SBI or any other nationalized bank and avail lower intrest rate if waiting time was not the constraint with me. May I know how much time usually it takes for someone on avergae for getting auto loan approved when he/she had existing relationship with the bank

I would seriously recommend to avoid HDFC bank for any kind of future relationship.

I have one solution for you: send a mail to customer support mail id. Send a strong complain mail. Threaten then to withdraw from loan application and even moving your account from hdfc to other private bank. Even if they are not responding over phone, they would definitely respond immediately if a mail is sent. I have the experience of taking them to task by using mail-power. Also search for nodal officers/branck managers mail id of your area and Cc them. Its will work.