I know they are (in my case) for distance only. I boughtmultifocal but can't read with them either.
I tried the 30 cm distance but it's too far away for me. I can't hold a book this way.
I think I'll buy some cheap readers. The once I bought were expensive and look cheap too. Totally waste of money.

Btw: they told me to hold my phone the way I use it to check my eyes. Glasses been changed twice and still useless. ☹