أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
first read the situation. than talk to customer and offer discount. say sorry also and promise him to improvement. invitation for next visit
Well the best way , you need to be very polite and calm to the customers because we know that customers comes first and customer pay our wages , you need to tackle the situation either by offering something complementary or any thing else you can make them happy.
Firstly i would like to read the customers mind how he is reacting, after i will take any action.
If he is being hot or aggressive so i will explain him the details of our product that actually its our fault we will rectify it soon so you have to keep patience, some time its happen with everyone.