Other caveats apply: You have to use a credit card (no debit cards). (comicsworthreading.com)
If they meet this requirement, along with a few other caveats, there are several types of unsecured loans they can take advantage of. (financialwellness.org)
One other caveat Whatever method you select, you're stuck with that method for that specific fund for as long as you're invested in that fund. (fool.com)