I still think it's a horrible idea to donate, no matter how. And how are they supposed to come up with the money? October 2013, there was a washtowel study rag hounding people to cut way back on their work and throw away all their surplus money. Soon after, they wanted people to get computers and tablets. Those things are expensive for someone that works part time and throws away all their "surplus" money.
Beyond that, there are too many other expenses. Day to day, one must provide gas and maintenance for a car. There are suit dry cleaning expenses, poisonburgers that cost money, and other field circus supplies. Then you have Big Boasting Sessions--more gas. You have Grand Boasting Sessions--more gas, plus usually motel rooms. And, there are other activities--just the Israel missions cost as much as a whole monster box of silver. Do they have money to do Israel, or just donate it to the Worldwide Damnation Fund?
That link should be avoided as studiously as if it is known to have a worm just waiting for anyone to click it. Donate zero, whether in person or online. Do not donate through debit or credit card, either--going into debt is a lousy idea for this (besides, many are probably still in debt after that abomination they did in 2015, and the other one they are planning for in 2017). For the record, I also recommend strongly that anyone thinking of doing the Israel mission to boycott that mission. Totally. Do not go, and if they hound, tell them that, now that they hounded, they cannot do it for joke-hova but would be only doing it to get the hounding to stop. Go ahead and buy the monster box of silver if you can afford the mission. If you insist on still going to Israel, do it as a vacation--and look at plenty of YouTube videos that will give you an idea of what to expect while there. But, do NOT do the mission--you WILL be wasting your time and money.