Jiomart — Order not received and the delivery is getting delayed

I've ordered an iPhone 14 on 15th jan 2023 and the delivery date was 18th jan 2023. The delivery date is changing daily to tomorrow. I'm contacting daily to the customer care team of jiomart and they are not able to solve my issue and just keep on telling that it will be resolved very soon. I've even filed a complaint and there is no response even after 5 days. The customer care does not even know anything and they just keep on telling that the backup team is looking into the issue. I want my order to be delivered as early as possible. Kindly resolve this.