One estimate is one short, at least. You don’t have to pay anything in most states unless you are given more than one estimate. One requirement is that you report accidents to police if the damage is over a certain amount. I may be telling lies but you should still check it out.
Speaking of estimates…
you ask about '‘hidden’'damage…compared to WHAT ?
What IS the ‘‘damage’’ that is estimated at $1200.00 ?
What does the estimate say is damaged ?
Only knowing that , can we surmise what else could be ‘‘hidden’’.