Which statements are invalid and what is missing from the diagram based on the process detailed below?

The motor claim handling process starts when a customer submits a claim with the relevant documentation. The notification department at the car insurer checks the documents upon completeness and registers the claim. Next, the Handling department picks up the claim and checks the insurance. Then, an assessment is performed. If the assessment is positive, a garage is phoned to authorize the repairs and the payment is scheduled (in this order). Otherwise, the claim is rejected. In any case (whether the outcome is positive or negative), a letter is sent to the customer and the process is considered to be complete.

Customer Claim documentation Notification Motion De incomplete Notification Department complete Check completeness Register claim claim Claim Received Car Isurer Claim documetation Registered claim Nos covered negative Covered Handling Department Assess claim Notify Customer positive Customer noufled Schedule payment Authorize repayment Autorization Payment deials Garage