Q: What is your return policy? A: You will need to obtain an RMA# from our customer service department by calling (800) 526-7887 within 90 days of the invoice date. To obtain an RMA# you need to furnish the original Delta-Therm invoice number. RMA#'s are valid for 30 days from date of issue. The RMA# must be clearly marked on each shipping container and attached documentation. All material must be in original packaging and in resellable condition. Heating cable must be on the original reel, uncut, and still maintain the factory tags. There will be a restocking charge depending upon the product that was purchased.