HDFC Bank — credit card bill amount discrepancy

Address:

Mumbai City, Maharashtra, 400606

I have been using hdfc regalia credit card since 5 years. I have never across any issue with bill card statement. However, i have come across bill amount discrepancy in nov month credit card bill statement (Similar discrepancy was noticed in jul moth statement which i failed to notice that time).

Total bill due amount in statement is rs.29015. Whereas when i total it as per transaction done on card is comes out be rs. 27892.

I have attached images of credit card bill statement for more details.

I need answer for this mistake and want refund otherwise i might will take serious action againts hdfc.