I've got 3 messages left in the last couple of days. They said that they are calling from  "HS Retail Services".
I have no idea what they want.

Message left on answering machine.  Caller gave name, but not company name or affiliation.  She asked that I return her call.  I called the number very late at night, from a phone other than my home.  I received an automated message stating I had reached "Retail Services" and noted hours of operation.  No idea what this might be in reference to.

never answer any unknown calls that asks for your card details. as per bank rules, legitimate callers/dsa's should use the number punching instead of asking the details verbally

calls all hours of the day

got a call from this number, called back. they told me a credit card  which I have never applied and asked my last four ssn. is this a real number with HSBC?

got 2 calls today of a recording stating something to the effect of "keep holding for an important phone call"

repeated calls from a machine at all hours of the day!!!

no human to talk with....machine