Disappointing Customer Service

I had logged a warranty claim with the company through a repairing dealer and took my vehicle away once the diagnostic was conducted as the dealer is quite far away from my residence which made it difficult to find alternate means to travel back home on short notice. The dealer logged the claim with Innovation to which they responded that an assessor needed to be assigned to the claim and sent out. The dealer then notified me of such and I called innovation and advised of the above and the fact that the vehicle was in my possession. I then requested on that call if they can get the assessor to make an appointment with me to go to the dealer so I can met him/her there to conduct the assessment. Innovation comp**** and told me that they have sent the relevant notes out to the assessment division and the assessor will call me prior to going out to the dealer. The day came and I made prior arrangements in order to accommodate a call in the day to drive out to the dealer to meet the assessor. After waiting for most of the day, I enquired from the dealer if he knows anything to which he rep****, much to my surprise, that the assessor had come out and left in the morning already. I then called innovation and advised them of such and asked that this be logged for investigation as they confirmed that the note for the assessor to call me was still on file and they are unsure as to why I was not contacted. After leaving this in their hands to resolve, I received a rejection letter for this claim with the reason that the vehicle was not at the dealer for assessment. I then logged this twice with the complaints email address stated on the rejection letter which was a guardrisk mail address to which I received an acknowledgement for each and thats where it stops. More than 2 weeks has passed since this incident has occurred and no feedback on my complaint has been received nor has this claim moved forward! This kind of customer service does not sit well with me.