Complete the EFT form--you can download it below. This is the only acceptable form for a MassHealth provider application for electronic payment.How do I write a withdrawal letter? A municipal advisor must complete this Form MA-W to withdraw its municipal advisor registration with the SEC. WARNING: Complete this form truthfully. Refund processing time: Please allow 60 days from the date we receive your completed application—both Parts 1 and 2—for our refund unit to process your payment. Instructions to complete this Form. 1. Complete the requested information at the top of the form. 2. IMPORTANT NOTICE - This is a request to withdraw your application. If we approve it, the decision we made on your application will have no legal effect.