Rain 5g cpe pro 2 router

Wednesday 28 April 2021 my cpe pro 2 5g router from Rain was delivered and according to the emails I got the device should be working. Email said my sim has been activated and is ready for use. It's the 2nd day today and I've spoke to 4 different consultants and my issue still hasn't been solved. One of them said there's a problem by the billing department, I'm a 1st time subscriber with Rain how does my payment be approved and the device and sim got delivered if they feel there's there's problem and I didn't pay.