Since past 1 month everyday few of my orders are getting cancelled and affecting my account health, on complaining I was told it was cancelled from our end but thats not the case, what should I do?

I'm Getting Only COD Payment form Last 2 Month,

I don't reserved any electronic transaction last 2 Month

My account is deactivated few days account health issues iam new seller policy violence 14 number received iam not addressed iam new seller in Amazon any proper bill copy available but third team listing create any possibility reactivate