2 problems : whmcs pending and new user welcome email

hello,

I run the latest wp multisite (4.3) and whmcs (6.0.2), and also the latest whmcs mu provisioning plugin. I am facing two problems :

1. WHMCS set order to pending order. Not auto accept or auto activate.
I know that natively whmcs will put all order as "pending" until we manually accept them. Even if I set "Automatically setup the product as soon as the first payment is received".
http://docs.whmcs.com/Order_Management

The above docs also state that even though the order status is "pending" the product associated with that order should be activated following my setup (in this case "Automatically setup the product as soon as the first payment is received")

My problem : new order is set to pending and so is subsite creation within WPMS.

2. WPMS send new user a welcome email with link to set new password. Anyone know how to stop this?

thanks in advance