HDFC Bank — credit card order failed dispute charges

Address:

Steps stone apartment alappakam chennai, 600063

On april 1 2019 they took 2048 Rs from my credit card .. The amount was not reversed to card till today it has been 7 days gone.. I need my money back... If we call customer care they are not responding properly.. The order failed transaction should suppose to reversed with 3-5 business days but still O didnt receive my back