This is the 5435th most frequent Russian word.
переплачивать
To overpay.
Here, 'переплачивать' is used to indicate paying more than the given value for an item, highlighting an unnecessary or excessive cost.
Я не хочу переплачивать за этот продукт.
I don't want to overpay for this product.
In this sentence, 'переплачивать' conveys the avoidance of spending additional unnecessary money on purchases, often associated with bargains or discounts.
В магазине дали скидки, чтобы клиенты не переплачивали.
The store offered discounts so that customers wouldn't overpay.
Here, 'переплатил' (past tense of 'переплачивать') describes an actual event where more money than required was given for services due to a billing mistake.