how do iclean the charging port of my iphone 7+

Carefully.

Under a bright light, with a magnifier if you have one, use something non-conductive like a wooden toothpick to gently remove any pocket lint or other debris.

Don't use metal. Don't use canned air. Don't use liquid.

If there's something stuck in the port, make arrangements to have Apple look at the phone.

Damita625 wrote:

Thank you for your assistance. I am out of the country and will not be able to try to do it myself

Why can't you try it yourself? It's easy. And a lot cheaper and less effort than buying a new phone.