Is it considered a weakness of character not to defend one's point of view and to outwardly accept the opinion of an elder, despite an internal desire to do the opposite, and an unwillingness to renew meetings with old friends along with frequent regret over the past? What is the ruling on excessively raising product prices in some places, the ruling on earning from these sales, the ruling on buying from these stores, and is it considered extravagance? And what is the ruling on stores that keep the remaining small change (halalas and qirsh)?

There is no original objection to traders and service providers increasing prices, as long as it is based on mutual consent, and there is no Sharia limit to profit. A Muslim trader should observe ethical considerations in their dealings and be characterized by leniency. There is no objection to purchasing goods or requesting services from those who increase their prices, and this is not necessarily considered extravagance, as extravagance varies according to people's circumstances, and what is considered extravagance for one person may not be so for another. It is not permissible for shops to take fractions of currency (small coins) without the owner's explicit or customary consent.