Payment Methods & FAQ

The ASLO Aquatic Sciences Meeting 2023 accepts several methods of payment detailed below. The online forms accept credit cards but also allows you to pay later by check or wire transfer. Please follow the instructions below and read the brief FAQ on common payment issues below. Payments are made in U.S. Dollars.

Note that the United States, where ASLO 2023 collects fees, does not participate in IBAN.

Credit Card

ASLO 2023 accepts Visa, MasterCard, American Express and Discover.


Make checks payable to: ASLO Aquatic Sciences Meeting 2023

Checks must be drawn on a US or Canadian bank. Please send checks to:

ASLO Aquatic Sciences Meeting 2023
1120 20th Street, NW
Suite 750
Washington, DC, 20036

Please reference invoice number with payment.

Your organization may pay for more than one invoice on a single check. To do so, please make sure to have a copy of each invoice being paid attached to your check, as well as a contact name, phone number, and email address.

Wire Transfer

ASLO 2023 offers the ability to pay by wire transfer for all members both within the United Sates and without.

For wire transfer help, contact [email protected] by email or +1 254-776-3550 by phone.

Please reference invoice number with payment.

United States Tax ID

The Tax ID for ASLO 2023 is #38-1710020.


We are happy to offer invoicing, however, all invoices are due within 30 days from date billed and must be paid before the start of the meeting.

A purchase order is required before an invoice can be created. We encourage group invoicing for organizations that have multiple people attending.  Please contact Jo Davis regarding this at [email protected].

Deferring Your Payment

You may defer your payment by using the “Pay by Check” feature at checkout. You may then log back into the meeting system and complete your payment by credit card or by sending a check (see "Check" above). Note that this function has been made available for employees of organizations that have date-based budget concerns that affect funds availability.

Payment FAQ

Below are the most common payment issues and tips on resolving them.

Declined Credit Card Transactions

  • Your profile address does not match that of the billing address for the credit card. Check that your ASLO 2023 address matches your credit card's billing address.
  • Your university or organization credit card requires pre-approval or has a specific list of approved business types for purchases. Check with your organization.
  • You accidentally charged a transaction on your personal credit card instead of the university/organization card. Send an email to [email protected] with details of the situation and someone will be in touch with you as soon as possible.

VAT Identification Number

  • ASLO 2023 is incorporated in the United States and therefore does not collect VAT.
  • If you need your organization's VAT number on the invoice be sure to include it in your address profile.

Getting Help

If you have questions about paying for your ASLO 2023 abstract fee or registration, please contact ASLO 2023 Meeting Management at [email protected].

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