GMA Investments, LLC Debt Collection Complaint

GMA Investments, LLC Debt collection department,

I do not know Disclosure verification of debt Not given enough info to verify debt Washington

My sister started receiving calls from a placed called Summit Receivables ( - ) regarding a undisclosed debt on -/-/-. After receiving a message from my sister I contacted the number above. When I called they would not identify the debt in question. They tried to ask for my ssn to look up the supposed account. I did n't give it to them. I had to call back a few times because the people would yell at me and hang up the phone.. Whenever I would request some sort of debt validation. They never identified the debt over the phone nor did they send any letter of validation after I contacted them. I also reviewed my credit and I do n't see any collection activity from Summit Receivables. My sister contacted me again the other day stating that she is still receiving call from them even though I called them from my number. She said that now they are claiming it 's in regards to " her debt. '' they might be contacting my dad as well, as he told me yesterday a collector called him weeks back asking for me. I have n't put any of these family members on any credit related items. I think this is a scam.. I have researched online and found many other people complaining about the same place.