Calling 3 or more times a day. Letting it ring 3 times and no message

Constant phone calls from 7 or 8 AM to 10 at night.

Called to inquire about the excessive fees I pay for banking Merchant Services. Identified themselves as Summit Merchant Services.

this caller claimed that i won a wallmart voucher card and i gave him my address to send the voucher but he declined to tell me the name of the company he's working for and immediately i became suspicious

I received a call at my house phone from a lady named Tina and requested for me to call back as I was being served in a civil suit. She left a the above number and a case number.I returned the call because it was very strange to be getting served by phone and decided to call anyway just for my piece of mind. A gentleman answered asking for the case number and he said my name. I told him I get several calls from debt collectors looking for a person that has the same name as me which is also a very common name. He asked for the last four of my social security which was also strange. I told him that I would not give him that information and for him to give me the last four of the person he is looking for. He said he could not provide that for me. He then said in a very rude manner if it is you it will be in the mail and hung up on me. Please be careful from what I know you have to be served in person.