Phone bill problem

let textAmmount = +gets();
let minutesAmount = +gets();

if (textAmmount <= 20) {
  print(`0 additional messages for 0.00 levas`);
  var additionalMessages = 0;
} else if (textAmmount > 20) {
  var additionalMessages = +((textAmmount - 20) * 0.06).toFixed(2);
  print(
    `${textAmmount - 20} additional messages for ${additionalMessages} levas`
  );
}

if (minutesAmount <= 60) {
  print(`0 additional minutes for 0.00 levas`);
  var additionalMinutes = 0;
} else if (minutesAmount > 60) {
  var additionalMinutes = +((minutesAmount - 60) * 0.10).toFixed(2);
  print(
    `${minutesAmount - 60} additional minutes for ${additionalMinutes} levas`
  );
}

let totalThings = additionalMessages + additionalMinutes;
if (totalThings === 0) {
  print(`0.00 additional taxes`);
  var tax = 0;
} else if (totalThings > 0) {
  var tax = +(totalThings * 0.2).toFixed(2);
  print(`${tax} additional taxes`);
}

let totalBill = 12 + +(additionalMessages + additionalMinutes + tax).toFixed(2);

print(`${totalBill} total bill`);