I had a very different response from them. They told me they were going to send me a Visi-therm to replace each of the ones I already had and would then expect to see me return the old Stealth heaters. Since I would receive the new heaters before sending them the old ones, I would never need to go without a heater in my tanks. I am still waiting to see those first heaters arrive but the message I got was very encouraging. I did not expect to see cash show up for my heaters so I suspect I will have a better overall experience than someone seeking cash without a receipt. I have not one receipt for any of my heaters but a returned heater with their name on it should be expected to carry some weight.