Catholics-when buying indulgences can you?

Once dead you can not 'buy' anyone out of hell:

The rich man also died and was buried; and in Hades, being in torment, he lifted up his eyes, and saw Abraham far off and Lazarus in his bosom. And he called out, 'Father Abraham, have mercy upon me, and send Lazarus to dip the end of his finger in water and cool my tongue; for I am in anguish in this flame.' But Abraham said, 'Son, remember that you in your lifetime received your good things, and Lazarus in like manner evil things; but now he is comforted here, and you are in anguish. And besides all this, between us and you a great chasm has been fixed, in order that those who would pass from here to you may not be able, and none may cross from there to us.' And he said, 'Then I beg you, father, to send him to my father's house, for I have five brothers, so that he may warn them, lest they also come into this place of torment.' But Abraham said, 'They have Moses and the prophets; let them hear them.' And he said, 'No, father Abraham; but if some one goes to them from the dead, they will repent.' He said to him, 'If they do not hear Moses and the prophets, neither will they be convinced if some one should rise from the dead.'" Lk 16:19-31

I would suggest giving your Grandmother this scripture. I would also refer her to http://www.traditio.com/ if you want to save her soul while there is still achance! And if she really wants to 'be' a Catholic.

That is totally unbiblical.

I don't think your grandmother is going to get her money back. paying indulgences is a scam just like the televangelists of today.

Find a good Bible based Christian church that teaches from the Bible verse by verse. A true follower of CHRIST does not want your money.