Business ProfileforIn The Swim

I ordered from this company "In the Swim" through ******** In the Swim is a 3d party seller through ******** I ordered an $80 cart for my pool vacuum. They sent me a $1,200 pool filter system. It is huge and I could barely move it inside so it didn't get stolen off the porch. I contacted ******* who said I have to bring it somewhere to send it back. I can't move it. I also told them I wanted a credit to my account. They refused and said I can't have one through them until I send it back and the company approves it.. minimum 10 days. I declined because this isn't my mistake. They said they would message the company to resolve it then. I agreed. The company first asked for a picture of the box and the mailing label. I sent it. The someone else sent me cut and paste instructions and told me to go thru ******** I told them for a 2nd time (told the 1 that asked for pics also) that I cannot move this thing to return and I want my $80 back. They just keep sending me back to ******* and tell me I have to return it myself. I offered if they aren't worried about their product to just keep it and go somewhere else to buy my cart because I can't move it. Awaiting their reply.