Trade in price too low? Let us know about it

When trade in price too low until below RM10k, kindly advise us to give better quote. Wanted car as below:
Perodua Kancil
Perodua Kelisa
Perodua Rusa
Proton Wira
Proton Iswara
Proton Tiara

We are trying our best to increase few hundred from trade in price and also helping car from tow back by bank. Kindly PM me if you have any. Thank you.