पेलोड में 1 से अधिक संख्या मूल्य जोड़ना

मैं एक रेडक्स ट्यूटोरियल कोड के साथ खेल रहा हूं, मैं createPolicy एक्शन क्रिएटर में एक और नंबर वैल्यू जोड़ने की कोशिश कर रहा हूं, यह कुछ त्रुटि दिखा रहा है, कृपया मुझे बताएं कि मैं यहां क्या याद कर रहा हूं

console.clear()
const createPolicy = (name, amount) => {
  return {
    type : 'CREATEPOLICY',
    payload : {
      name, amount, bill
    }
  }
}
const deletePolicy = (name) => {
  return {
    type : 'DELETEPOLICY',
    payload : {
      name
    }
  }
}
const claimRequest = (name, amountofclaim, fees) => {
  return {
    type : 'CLAIMREQUEST',
    payload : {
      name, amountofclaim, fees
    }
  }
}

const creteReducer = (previesdelte = [], action) => {
  if(action.type === "CREATEPOLICY") {return [...previesdelte, action.payload ]}
    else{return previesdelte}
}
const clamReducer = (totalamount=200, action) => {
  if(action.type === "CLAIMREQUEST") {
    return totalamount - (action.payload.amountofclaim  + action.payload.fees)}
  else if(action.type === "CREATEPOLICY") {
    return totalamount + (action.payload.amount + action.payload.bill)}
  else{return totalamount}
}
const deleteReducer = (userlist = [], action) => {
  if(action.type === "CREATEPOLICY"){
    return [...userlist, action.payload]
  }
  else if(action.type === "DELETEPOLICY") {
    return userlist.filter( name => name !== action.payload.name)
  }
  else {
    return userlist
  }
}
const {createStore, combineReducers} = Redux;
const allReducers = combineReducers({
  creteReducer:creteReducer,
  clamReducer:clamReducer,
  deleteReducer:deleteReducer
})
const store = createStore(allReducers)
store.dispatch(createPolicy('fff', 20, 3))
store.dispatch(claimRequest('fff', 150, 5))
console.log(store.getState())