FBK Products Purchase septic warranty plan have it for two years when the problem occurred we were told that it was not covered Riviera Beach Florida

Purchased a sepitc warranty through FBK Product when we signed up the guy was very nice and told us if somthing goes wrong with are septic system all we have to do to give them a call and it would be covered under the warranty. We have a warranty with them for two years couple weeks ago we had a problem with are septic system we called them they sent a technitchon out when he was done and sent the estimate to them they told us that nothing is covered under the plan. They told us that they do not cover a sepitc mound they only cover a tridational septic system when i told the lady that when we signed up we explained to the guy what kind septic system we have he said "that all would be covered" her answer to me was maybe he did not understand or never asked what kind septic system we have. She told me nothing could be done and i have to pay all the expanisve out of my pocket