HDFC Bank — worst and pathetic service for preferential customer

I Vikram kagi having world MC card, no no [protected], whose credit limit was R 5, 00, 000, but to non usuage the card was blocked I have applied for address change on the 4th of this month at your kolhapur branch, and since then I have got horrible service, without anybody solving the issue. I have called the call center N number of times, but everytime I get different version 1st they told me the applications did not reach them after 15 days 2nd time they told me they could have done the address change online 3rd time they have told tme to just submit a application for renewing the credit limit, which was blocked, which made no sense as the card had expired . I need to leave abroad next month and need the card urgently, but to no avail I met one Ms Sheetal, who has been helpful and even took my application during her visit to kolhapur to pune, as she works in Pune, her Contact no is [protected], but till now the address change has not been Done and I have to apply for new card once this address change is done. Please look into the matter urgently and give me a solution