Hello. I have a 2015 Sundance 680 Edison that decided to quit working during last week's Wisconsin coldspell. I called the service department for the place where I purchased the hot tub. They came out, replaced the sensor, said hot tub was fixed and charged me $255 (which included a $199 service call). Hot tub still didn't work. Repairman returned several days later and determined that new topside was needed, which needed to be ordered. Charge for visit was $169 (company waived the $199 service call). A week later, repairman returned and installed new topside control and said that hot tub was now working properly. Charge for this visit was $518, which included that pesky $199 service call, on top of labor and part charges. HOT TUB STILL ISN'T WORKING, and this place has billed me $944 so far. What should I do? They have my credit card number on file and automatically charge me every time they come out. I am soooo frustrated. Almost $1000 into this, and my hot tub is still not working properly. Thanks for your advice.