Wrongly charged while purchasing apple

In 2019, it is clear that the domain investor is under surveillance mainly to cheat and harass, defame her.
For example at one retailer, there were two different types of apples available, one set was costing Rs 100 a kg, the other was costing Rs 180
The domain investor chose one apple sold at Rs 100 per kg.
Yet when the bill was made, she was charged fro Rs 180 per kg, Rs 30.80 for one apple costing 170 grams
Since the seller was not giving a refund, the domain investor had to return the cheaper apple and purchase the more expensive apples, paying the additional amount