Yes, customers of Total Wireless can typically switch their plans without losing their existing services. When making a plan change, the new plan will generally take effect at the start of the next billing cycle, and your existing services will continue until that time. This means you can change your plan according to your needs without a disruption in service. It is important to review the details of the new plan to ensure it meets your requirements and that you understand any changes that may occur, such as pricing or data allowance. For the most accurate and specific information regarding switching plans and how it may affect your services, you may want to check the official Total Wireless website.