curl --request POST \
  --url https://order.edisglobal.com/kvm/v2/add/upgrade \
  --header 'Content-Type: application/json' \
  --data '{
  "email": "user@example.com",
  "pw": "securepassword",
  "kvmid": "kvm_123456_789012",
  "newpid": 1642,
  "newbillingcycle": "monthly",
  "newpaymentmethod": "paypal"
}'

{
  "status": "success",
  "orderid": "228300",
  "serviceid": "209052",
  "invoiceid": "1617670",
  "oldproductname": "KVM BASIC",
  "newproductname": "KVM PREMIUM PLUS",
  "oldproductid": "1632",
  "newproductid": "1642"
}