Paying via the membership form is much preferred. It explains important details of club membership. It help us collect required information from members. It helps members understand what payments are due. It helps us understand what members are paying for. If you're paying by check, it lets us know to expect a check in the mail, to plan a trip to pick it up at the PO box, and contact you if it doesn't arrive.
But sometimes there are technical problems paying online via the membership form. So, here are some alternatives that might help. Please include a note explaining what you are paying for.