Business ProfileforFAR Florida

I am on the market for a house and I found a house at **** ** *** ******* cape coral, Florida XXXXX my Agent sent a full offer on the house the seller accepted my offer, and I wired 3000 dollars escrow deposited to the seller title agent in which is belong to the seller agent and his family. we were supposed to close on 04/28/2022 but due to the high-interest rate I found a lander that offer me a rate of 4% the first lander offered 5.125 so I would save big I called my Agent and informed him and he called the seller agent informed him the seller agent agree and understand the process. but due to the change, the new lander ask for an extension for a 6 more days guarantee to close the loan the seller's agent said ok. but wait late in the evening on the 28th of April and called to say he will not send an extension instead he will send my agent a release and cancellation and release the 3000 dollars escrow back to the buyer. The next day he said the buyer is losing the money because the buyer could not close on the house and ever since he keep the deposit now the house sold on 06/15/2022. they still refuse to give me my deposit back after they refused to sell to me after I spoke to many other people they all say I must get all my money back since the seller was the one who refused to sell or continue the process with me. I have even been kind and very generous I offer to keep 500 dollars and send me back 2500 dollars the agent said no he wants 1000 dollars even after he sold the house for 359k and make his money and I am still in the market looking. I already paid for the appraisal, and inspection all those money is gone. I need help getting my 3000 dollars back.