We ordered our hot tub they said will take 4 weeks...

We ordered our hot tub they said will take 4 weeks to deliver, took them 6 weeks to deliver it. Got it June 3. 2 weeks later found a leak, called service they have sent 3 people out for them to be told over and over it is cracked, came to us cracked. We have the water fall tub and we have not used that feature due to the crack in it. But mind you they are still taking thier payments out. So we have called them since the 2nd week we received the tub and still on Sept 20 they keep giving us the run around. We are about to get nasty with them.