If I return my machine, will you reimburse me for the shipping costs? Matt February 17, 2017 20:31 Updated Follow No. The customer is responsible for all return shipping costs. Related articles How do I return my order? What is your return policy? Are there any authorized service technicians near me? What are the warranties on Diamondback Fitness Machines? How do I reach customer service? Comments 0 comments Article is closed for comments.