Hi Gregorysgirl
Welcome to the forum, you might want to have a look at the following FAQ which explains where everything is.
Welcome to Benefits and Work .
ESA is an indefinite award with scheduled reassessment based on the Prognosis Date completed by the assessor in their report, so your existing ESA award continues in payment until a new Decision is made.
Do you have a CPN or a psychiatrist who can write you a supporting document?
You are free to request a paper-based assessment, but they are unlikely to grant one without a doctor's letter confirming that it would cause you 'overwhelming psychological distress' to have a telephone assessment. Be warned even then the DWP and/or the assessment services sometimes ignore such requests.
Gary