Reliance Fresh — customer service rude

Went to kalani nagar reliance fresh date 09.11.2018, cashier: 60404288
While waiting for billing in queue, inbetween othee items of other customers were billed that was bought by security or someone else, not a single word was told to us patiently waiting in line
On enquiry the lady at casher was rude speaking "which weere items i have bikked, all were on line too, and if guard sahab says i have to bill"
The way was rude too
Reason
1) of 3 counters avaialble only 2 were active even when conjustion was there this is common here
2) the person was not trained on how to speak to a customer, if any urgent billing was required a word to the one immediately in line would suffice, every one has urgency. May be she has a bad day. But not all customers are same.