You asked a question, and I gave you the answer. To achieve penance of your oath you need to give food or clothes to ten destitute or poor people, not money. If you give money the consensus of scholars say that it doesn't count and you will still have this oath on your neck. So I suggest you buy the food and send it, or find other poor people near you to give them the food and clothes. It's not voluntary charity where you decide what is more convenient for you and them, it is a penance you need to make.
You may fast 3 days if you cannot afford to feed others, which is obviously not the case here, so you'll need to feed or clothe ten people (or if you know of a slave to free?).

Look, you may be feeling awkward about this but you need to do it this way to atone for it.
May God grant you help and guidance.