UNK random calls to cellphone

picked up my personal cell & answered with my company name and live person answered,  He said thought he may have the wrong number, then tried to pronounce my name.  He totally mispronounced my last name.  I said yes, you've got a wrong number and hung up.  Didn't even bother to wait for his sales pitch.

Unknown calls and no messages left

The gentleman had my mother's name (which he totally mispronounced) and said he was calling from Congressional Bank. I just hung up.

I have been getting calls from this number (253) 561-0203, had been ignoring it by not answering it.  Today, I finally answered and spoke with a guy name Riley who's supposed to be from Congressional Bank and was asking if I want to refinance my mortgage.  Told him I would have to call him back and he gave me a totally different number of (614) 335-5225, mind you, the caller ID on my phone registered it as (253) 561-0203 and for him to give me a totally different call back number is quite concerning.