Exporting Contacts from iPhone
The easiest way to export your contacts from your iPhone is to use the My Contacts Backup App. You can search for it in the App store and once downloaded you simply click backup and then email them to yourself. You can then forward that email to firstname.lastname@example.org and we can create a spreadsheet from them and then upload them to your account.
Always email them to yourself first. The email won't include your contact information so we won't know the contacts belong to you.