I went to apply for a loan to buy a house, and it turned out I have collection reported on my credit report. when I called them it turned out I have a bill of {$340.00}, I do n't know where that came from, I have health insurance. but I decided to pay it same day because I never had any collection or debt in my whole life. the man from the collection company is called XXXX XXXX, the company name id designed receivable solutions ( www.drsi.ws ) and their address is XXXX XXXX XXXX XXXX XXXX, XXXX XXXX, CA XXXX XXXX XXXX XXXX XXXX. 
XXXX XXXX told me if I paid the bill I will receive a letter from him that I paid my debt and they will report to the XXXX credit companies that I am clear. the payment was made XXXX/XXXXXX/XX/2015 and you will see the transaction in the document attached. since that day until today I 've been calling him everyday and he is ignoring my calls saying I sent you the letter. I asked him to email it and he said that he cant, I asked him to ship it with tracking number and he can charge me for the shipping he refused, I begged him to send it and my last phone call with him, he said that I should realistic, and that I should have known better that he will not send me anything. and he did not remove the collection from my credit reports. 
I am really helpless and this is really unfair, I am the one who called them and paid my debt and he promised he will send me the documents and he is not. my life is ruined from this situation, I could not get the loan for the house. and I paid it. this is really unfair. please I need your help with this matter. just make them send me the letter and clear the bill from my credit reports. I had a high credit score but after the collection record came on my account, my credit score dropped. I never had any debt in my life. I pay my bills in time. this is really unfair and Sad. I really appreciate your help.