******* Rain network

I signed up for a 5g month to month contract with rain beginning of lockdown and it has never worked and i cancelled it as it was a hassle to get it to work. I gave them back their devices and my contract was cancelled even on the website on my profile. Now i see a year later they have been debiting my account ever since saying that they bill on an active sim and not data usage even though they see that I have never used their data in a year and a half. I want to be reimbursed for this as i cancelled and was ignored and not told the billing process as now they are billing me on a 4g sim whereas i had signed up for a 5g one. Even after my 5g cancellation they still continued to bill me and i had to fight now they back to their nonsense without me being aware its been happening all along. Rain i want my money..reimburse me whats due to me immediately.