Step 1- Dial the United States Warranty Company customer service number +1-866-504-0961. Step 2- Choose the language and enter the policy number. Step 3- An insurer assigned to you within a few minutes, ask the insurer to renew your insurance contract. Step 4- The agent will ask you to validate the identity confirmation process by offering your card number and premium plan code. Step 5- In case, you wish to upgrade the plan then ask the insurer to update the current scheme and pay the premium by using a credit or debit card. Always select the package that will suit your needs. If you wish, you can also pay the premium through the online medium.