Spoke with collector, XXXX and was spoken to in a derogatory tone, she refused to provide validation, she told me to go back to original creditor to get my validation, she then stated she is sending invoices, I told her that is not proper validation and she hung up, I called back and spoke with XXXX XXXX, he was just as rude and bullying as the last collector I spoke to, he forced me to send him a letter stating my dispute, I did, I called to make sure he got it and he again was condescending and rude, I called again a few days later and spoke with XXXX attorney XXXX XXXX and he refused to do anything- ( XXXX never gave me a mini Miranda and XXXX and hung up on me when I asked him to remove this from my credit as it is not mine.