Very Bad service

Rain has disappointed me on multiple occasions where I am left with no internet connection , I recently upgraded to 5G and paid upfront to get my new device . It's been 5 working days and I still haven't recieved the new device I PAID for UPFRONT and no one is returning my calls and can't get ahold of them. Not to mention the service I received from the consultant who was not considerate to listen to what I was saying when I was ordering the device. I am now at home with no internet connection and I can't work I even had to take a day off from work die to rain not delivering good service but too quick to debit money. I demand a refund as I have paid for my internet connection and device but have not yet received anything from Rain.