Return Policy: No refund or return for SIM cards purchased or related services. This return policy only applies to new SIM cards and related services purchased from BlackWireless.com. Monthly service, other fees and funds in Mango Wireless accounts are non-refundable. If a refund for a service plan purchased, but not yet activated, is requested within 7 days of receipt, a $10 transaction fee will be deducted. Purchases made at Retail locations may be governed by Retailer return policies.