ABCNY

I've dealt with different property management/owner companies all over the country and this one by far is the worst. They accuse me of not paying rent because they never received payments from the company who managed and executed my lease on their behalf. This was the company I made my rental payments to before ABC NY canceled their relationship with them and ask me to sign a lease directly with ABC NY. I've sent them receipts of the rental payments they are accusing me of not paying and I get no response from them other than another statement showing incorrect charges. Now they are threatening to send my account to collections and possible legal action. Horrible record keeping and communication between not only them and their tenants but apparently among themselves as well.