Instant deposits require a linked debit card and a minimum available balance of $5.00 to cash out. CITIES. Facebook Twitter Snapchat Instagram. FLEET. As a courier, your go-to support channel should instead be the Fleet member contact form, which can help you resolve just about any driver issue. About Careers Blog Press Unlimited Gift Cards Pickup Customer Support. Contact Postmates customer service. Sell on Postmates Developers API Docs Merchant Support Restaurants Near Me.