I bought their software, deducted the money from the card, but did not receive the license key.
You gave us the wrong email address. Correcting it now.
I have recently purchased the license Sunday night 10/18/2020 and have not received it yet Monday night 10/19/2020 says sale still pending.
Looking into our system, I see the email used when placing an order under this ‘Chris Lintz’ name yesterday is different than the one used here in your profile. Please send an email to support at lightburnsoftware dot com and we can help sort this there.
We do not want to discuss your license / email address publicly. 
Hi, i bought LightBurn software but still not receive a key, order : ORDER #334248
Your best bet for a timely answer is to e-mail all of your details to support@lightburnsoftware.com and they can assist you.