If your second card is getting HD broadcast channels and locals, it's getting digital.
Since you don't tell us exactly WHY they say they can't "do it' without a tech being at your home, I'd most certainly ask to talk to a Supervisor.
I'd also like to suggest you point out that you already paid for the one visit, which should have made both cards work, and that the first tech apparently left without making sure the job was done.
I wouldn't agree to pay for a second visit, and insist this be a freebie (if it's even necessary in the first place).
Since you don't tell us exactly WHY they say they can't "do it' without a tech being at your home, I'd most certainly ask to talk to a Supervisor.
I'd also like to suggest you point out that you already paid for the one visit, which should have made both cards work, and that the first tech apparently left without making sure the job was done.
I wouldn't agree to pay for a second visit, and insist this be a freebie (if it's even necessary in the first place).