Agitated

I'm highly agitated by the way my case is being handled by MiWay. I gave them everything they required and on Monday they told me my claim was approved, that they will make a payment on that same day. On Wednesday they went back on their word and advised that they are yet to confirm the car model. I called my car's Agents and forwarded the report that confirms the model of my car. Now they say they are investigating to confirm if there's nothing else! They seem to be looking for ways not to pay me. It took them 3 weeks to process and ultimately approved. Their going back into reviewing my claim is clearly a way of trying to come up with ways for not paying me. I'm going to escalate this matter further until it gets resolved.