Is it credible to pay in installments with zero down payment and zero interest in mobile phone shops? You can do without a credit card.

At present, there are such intermediary financial companies, such as Jiexuntong, which can buy mobile phones with zero down payment and zero interest only by providing ID card, work certificate and savings card in my name, and its profit mainly comes from the difference profit of mobile phones. It doesn't matter without a credit card. It will be deducted from the provided savings card every month.