Setting up an automatic donation

I am new to the calling and had a request that I think is unlikely possible. I cannot find anything on the topic.

A member would like to set up an automatic donation for her grandmother to donate to a missionary in the ward every month. I showed them how to do this online, but this requires frequent internet work and she is not keen on that idea.

So, I am putting out feelers for any who may think this is possible. I suggested that it would be unlikely, but maybe.

Thanks

The best you can do is work with the bank to send a check to the bishop's house every month, but that would be making someone write up a deposit slip each time.

Convenient for her, but shifts the work to someone else.