My name is***** have been dealing in and appraising musical instruments for over 40 years, and I can help you with this. According to the serial number your guitar was made in 1981. Assuming it is in good playable condition, your guitar would sell for $150-200 at auction and on the secondary market. Insurance value is $350.
I'm not sure why they offered that. Here is a link to one that sold for $170. https://reverb.com/item/64569-ibanez-artwood-aw-30-japan-from-1981 Scroll down and you will see this one.