If your mobile number changes, you are responsible for informing the Customer of that change. Trying to fill out my phone number on a job form.No, I can't type it. Families are required to notify Tarrant County Housing Assistance Office, in writing, within 10 days of the change. You must complete an Interim Change Form. Complete the amendment form, with no cross outs, no white out, and no correction tape. Sign the application in front of a notary and get a notary seal. Learn how to Change phone number in the Modern Employment Application without leaving your browser. Get the job done in minutes without installing any app. United Way brings communities together to find strength and share hope.