I received a bill for 7 months of special assessme...

I received a bill for 7 months of special assessment fees (which were not in my disclosure) that hadn't been billed because of a system error. Suddenly I got a 20 day noticed to pay 1.5k. For three weeks I called this company and was told I would receive a call back in 2-3 days. Having finally been fed up, I refused to hang up until I spoke with management. Finally I got my only communication with manage via the secretary who told me, "just contact your local HOA". So the people that want almost 2 grand from me can't even take the time to talk to me and explain? Usually when someone has a legitimate claim to take money from me, they try a little harder.