wow De. That is a real PITA.
Like you, I am on a blood thinner, a statin to help keep my bad cholesterol I am a major producer of, (I wonder if I can sell that stuff ?) and my three prescribed pills I take twice daily cost me exactly zero.. I have no monitor except seeing my cardiologist every now and then who is keeping tabs on me..
If I were you I would just buy the meter and make sure it works before returning the one back to Aetna.
Is the person calling you from here in the U.S.?
Aetna's customer service for medicare plans is not. They are in either India or some land close by.
Sorry to hear you have to do these finger pricks. They can hurt and aren;t something to look forward to. Especially in the same area.
Buy the meter. Skip the hassle... JMO....