DHL Express India — gst no. not mention in our invoice

Address:

400060

We have account with your dhl (A/c no.[protected]. But still gst no. Has not metioned in our present bill (Awb no. [protected]).
Previous invoice no. Mhsi[protected] dt. 22/12/2017 awb no. [protected] gst no. Was mentioned so why not in present bill (Bill no. Del471315 dt. 24/03/2018/ awb no. [protected]).
Our gst no. 27aaccv2306h1zk has not mentioned in boe also. We cannt bare igst 7030.64 loss. Kindly revised boe or refund our igst amount. Consignment no. [protected]