During our refinancing with moving from one facility to a new lender, the previous lender's lawyer added a additional 20K to the payout amount request, citing discharge fees and discharge legal fees....it this acceptable? 

That lawyer firm has been very slow to response when I advised them on discharging, and when they did, they added on that 20K on top.....

Much appreciate to know....what can I do, can I ask for breakdown? is this amount reasonable? how do I know if it's not just an opportunity to rip me off for the last time since we are moving away from them?

Thanks kindly!