My question involves landlord-tenant law in the State of: Georgia
Dear legal experts
I moved out of an apartment in Georgia. The move-out inspection was done by them offline without me being around. The leasing office contacted me approx 2 weeks after I moved out asking me to pay for carpet stains repair/replacement.
As I was certain that I left the carpet clean, I told them I would be ready to pay and requested them the pictures. They were unable to find the pics during the phone call and cited to revert. The next day, I received an email citing that they were unable to find pics but they shared the invoice from a 3rd party vendor showing a charge of $200 for carpet repair/replace for some stains (it was hard to read the writing).
I responded over email to them referring to my discussion the day earlier and also surprise on what they were referring to... and asked them to look up the photos so that I understand what I am paying for. Later, I also dropped an email to them asking them to respond as I haven't got a response. However, I just received a letter from collections agency citing that I owe around $300 plus.
Please let me know how I am supposed to respond? Also, I don't know if it is LEGAL and FAIR on the leasing office not to show any evidence of the damage (leaving just an invoice from their vendor) and demand money from me? What I should do so that it doesn't impact my credit score?
Also as additional information, it's just 7 days between the email received from leasing office and the date on letter from collection agent. Don't know if there is any minimum window that the leasing office should have given me?
Appreciate your inputs.

