I purchased the hydro therapy service on Groupon on a Thursday, they offered a special package, bought it. Felt miserable the whole weekend so called to get a refund on Monday. REFUSED saying they have to order supplies with my money so no refund can be issued. I'm sure the only thing I used was a plastic tube and paper towels. They should explain this at time of purchase. Very unprofessional and very disappointed with no guarantee, never received receipt or explanation about return policy!