this is NOT Interval House, you liar. Interval House is a women's shelter from abusive men. The number you referred to is a scam company trying to steal money from business owners. When I asked them for a number or a website, he hung up.
Anyone having problems with telemarketing calls can report them to the CRTC 1-866-580-3625. Calls will stop within two weeks. The company gets warnings and fined. If enough of us start reporting these sleazy calls, companies will eventually stop this practice because the cost of fines will be too high.