Disappointed with OSTI service

I sent a complaint regarding Iwyze rejecting my claim to OSTI, including proof of documents which Iwyze assessment which they used to reject my claim did not provide evidence that they st********** the car to assess further damages. Iwyze rejected my claim simply because they say it was within access. Renew IT who is the panel beater where my car was referred by Iwyze assessor did an assessment which included further damages which could not be seen is the car is not stripped. Renew IT asses*****t sky -rocketed from R19000 (Iwyze) to R340000 (Renew IT). Shockingly, OSTI outcome letter upheld the decision by Iwyze to reject my claim. It was so disappointing that an institutions such as OSTI could not excel in its service in the area of its expertise. It was only after I posted my complaint to Hello Peter that my matter was taken serious and my car is now getting fixed at a Johannesburg Autobody panel beaters. As for OSTI, I am so disappointment in you.